Sunday, 5 April 2009

USA: celebration and pause for reflection

Oyster Creek - Lacey Township, New Jersay- USA

Of the 104 operating nuclear power plants in America, only three were connected to the Grid in 1969: R. E. Ginna, Nine Mile Point - 1, and Oyster Creek. All plants connected before that year [most of them much smaller demonstration facilities] have since permanently shutdown. Of those three, only two received their full commercial operating license within that year: the two GE BWR's [boiling water reactors] - twin plants in fact - Nine Mile and Oyster Creek. Both licenses are listed in the PRIS website as having been issued on December 1, 1969. However, Oyster Creek was connected to the grid in September and Nine Mile in November. This makes Oyster Creek the oldest operating nuclear plant in the USA. Worldwide, only two operating gas cooled reactors in the UK are older.

1969 is a significant year in the USA for many reasons [something about an Eagle landing, etc.*]. With respect to nuclear power, '69 has relevance because operating licenses issued to US nuclear power plants extend for 40 years. Many facilities have applied and received license extensions for an additional 20 years. Nine Mile and Ginna already received their extensions, but Oyster Creek's application was aggressively fought by local environmental groups and some notable celebrities [literally, a cause célèbre]. But the technical review of all issues has concluded the plant remains safe and last week the Oyster Creek application was approved by the NRC, paving the way for another 20 years of operation. Congratulations are in order to the staff who operate and maintain the facility as well as the original engineering design and construction teams.

According to the NRC webpage [and assuming my math is correct], the number of approved license extensions is 51. Updating that page for Oyster Creek, will bump the total to 52 units - exactly half of the current US operating fleet.

But that's not all. Oyster Creek is now part of Exelon. However, way back when, Oyster Creek was the responsibility of Jersey Central Power and Light [JCP&L] - a part of General Public Utilities [GPU]. Another company within GPU was Metropolitan Edison or Met.Ed. Met. Ed. also worked to deploy nuclear power plants, but instead of electing for the GE BWR, went to B&W for a PWR [pressurised water reactor]. They located their two units on a decent size island in the middle of the Susquahanna River in south-central Pennsylvania; a three mile long island to be precise.

The Three Mile Island Unit II accident occurred 30 years ago last week [March 28, 1979]. No deaths or injuries directly resulted from the accident, but the resulting hysteria - fanned by an uninformed and sometimes blood thirsty media - did harm some people. The financial impact to Met. Ed. and GPU was much more significant. GPU's stock plunged to pennies per share. A spin off company, GPU Nuclear, was created to manage the nuclear assets including the Unit II cleanup, Unit I restart and of course ongoing operation of Oyster Creek [itself challenged as resources were diverted to TMI]. An in progress project to construct a sister plant to Oyster Creek on the same site in the state of New Jersey was cancelled in the wake of GPU's financial meltdown. The accident had effects on other nuclear projects and existing plants throughout America and beyond.


Diagram to explain the TMI-II accident (www.nrc.gov)

Those who claim nuclear plant employees, their managers, or owners purposefully and irresponsibly accept safety related risks for the sake of profit are ignoring the significant lessons learned from the TMI-II accident.

While a financial disaster, technically the plant's safety systems performed to perfection. Had it not been for erroneous plant operator intervention, even the financial consequences would have been nil. The facility would have very probably been easily restarted. During the event, control room operators purposefully isolated emergency cooling water - that the protection systems had automatically started - due to the operator's misinterpretation of a single indicator on the control room panel. But even DESPITE this action - the luxury of hindsight reveals that this was in fact about the WORST possible action to take given the true scenario - [I'll say it again] DESPITE this action, the multiple redundant, multi-barrier protection systems performed their function to protect the surrounding environment and population by controlling and containing the resulting mess. Credit must also go to the engineers and operators within the organisation. Once the above indicator was cross-checked against other indications [at the rear of the operating panel], the subsequent actions were well managed; courageously managed is probably more accurate. We should all ask ourselves if we would have the guts to do it. But I doubt their confidence was derived from some 'battler's bravado'. They knew the plant's technical capabilities and in particular those of the safety systems. They were informed by frequent contamination surveys and omnipresent radiation monitoring.

As Patric Moore has said, from the prospective of nuclear safety, the Three Mile Island Unit-II accident was and remains a phenomenal success, a testament to Western nuclear engineering design, construction and enduring quality.

I doubt there are many, but to all those who have worked for GPU, GPU Nuclear, then AmerGen and now Exelon over this entire time period - congratulations, well done and enjoy your well deserved retirement.

* Just as there were two fully commercial nuclear power plants licensed in 1969, there were also two moonshots. Both Apollo 11 and 12 took place in 1969.

Sunday, 15 March 2009

Scare tactics - effective, but shameful

Wayne Errington, a lecturer in political science and international relations at the ANU submitted this report to the Canberra Times about the role of 'Think Tanks' in Australian policy debate. In it, he explains how the Australian Institute used scare tactics to manipulate public opinion away from nuclear energy during the most recent federal election campaign.

Fear, the Australia Institute research fellow, recounts a very effective public intervention by his organisation when the Howard government was toying with the idea of nuclear power as a way of reducing greenhouse gases.

With the parliamentary opposition looking flat-footed, the Australia Institute quickly released a list of the federal electorates containing the locations most suitable for a nuclear reactor. This well-aimed missile killed political debate over nuclear energy stone dead as backbencher after government backbencher publicly assured constituents there would be no nuclear plant in their backyard.
I will interpret the 'well aimed missile' comment to imply that the AI custom developed that report specifically [and solely] to kill the nuclear debate at the time. Heaven forbid we engage the public in an informed, civil, objective discussion on the subject.

Has the AI ever claimed to be objective or unbias? Well, almost. From their website:
"The Australia Institute is an independent public policy research centre..."

"...the Institute reasserts the place of ethics in making public and private decisions."
I wouldn't consider a political "missile strike" built on a foundation of fear mongering exactly ethical.

Monday, 9 March 2009

Reports, critiques and expertise

Over the past few days, I noticed another article from Leslie Kemeny in the Canberra Times. It was filled with more arguments in favour of Australia considering the introduction of nuclear power. While I agree with the article, I didn't notice too many new arguments and would not have normally mentioned it here.

Not long thereafter, Geoff Davies submitted a reply in the Canberra Times as well as in his recently initiated Blog, Better Nature. I posted comments to both, but in addition to those, I'd like to take an opportunity to look at the McKinsey Australia report referenced by Davies.

First, I'd like to point out the McKinsey Global report: The carbon productivity challenge, Curbing climate change and sustaining economic growth. It was a precursor to the McKiney Australia report and seems to be considerably more robust - albeit not specific to Australia's chellenges and options. It is interesting to compare the two together as well as with the comments of Davies.

Davies points to the Australia study as reason for why nuclear is [economically] unnecessary. He also blasts Kemeny's claims about nuclear's economics stating, "Most energy experts agree nuclear power will be Expensive."

Davies also references nuclear power's timeline, "We may have only a few years in which to get our emissions down."

Finally, he summarises nuclear's potential impact, "Nuclear power would be Insufficient because it generates electricity only, which accounts for around a third of energy use."

First some general comments on the Australian McKinsey report.

Unlike the Global report [which specifically states two goals of reducing emissions as well as sustaining economic growth] the Australian report does not appear to encompass the same scope. For example, abatement technologies are deployed by cost only, without regard to supply reliability or energy quality. This seems to ignor the intermitancy of wind and solar which will impact grid stability as their contributions continue to increase. This is stated on page 19 where the authors clarify
"Note that we have not investigated whether the resulting power mix match energy demand profiles, nor the question of whether the location of renewable sources can be aligned with energy demands of the different states."
Next, regarding the scope of the Australian McKinsey report:

"The scope of the measures considered were those requiring deployment of present-day technologies. Speculative technologies or those requiring significant future breakthroughs were not included in the scope..."

Interesting how CCS has been included, but advanced nuclear fuel cycles, including a closed fuel cycle - which eliminates deep geological repository stability for hundreds of thousands of years, but instead require storage for several hundreds of years - have been excluded. Multiple fast reactors and fuel reprocessing facilities exist. Even as I type, a shipment of MOX fuel is being prepared to ship to Japan where a power reactor [or reactors] will relieve the world of some of its plutonium - forever. The introduction of fast reactors, with integrated fuel processing facilities will further improve waste issues and - by breeding fuel - massively extend the viability of nuclear power technologies. The use of alternative fuels such as thorium could achieve similar results. The point being that many of these alternative nuclear options are significantly further developed than CCS and are yet [unfortunately] out of scope. I understand why CCS is in scope, just not why advanced nuclear fuel cycles are out.

On page 17, the report speaks of nuclear power's environmental viability. I am unable to comprehend this concern. Fuel from existing power reactors is either being safely reprocessed or stored on existing reactor sites. No industry has a footprint of zero, but I do not see the evidence of nuclear power's impact. Regarding the need for a geologic repository for the storage of processing products for a few hundred years - my understanding is that few geologies are superior to Australia. Australia's low population density only strengthens this argument.

The costs presented for participation in the UNFCCC Clean Development Mechanism [CDM] - allowing Australia to claim an equivalent emission reduction credit in exchange for money we provide to developing countries to deploy their own low emission technologies - appear so low, I can't understand why Australia would consider any other option. I have assumed [and will continue to assume] that Australians are serious about cutting Australia's emissions - above and beyond any 'good' we do via the CDM.

The report analyses various alternative scenarios: first, adding nuclear; next, unlimited CDM credits and finally no CCS [all replaced by renewables]. It would have been interesting to analyse the scenario where the absence of CCS was replaced with nuclear or perhaps a mix of nuclear and additional renewables.

Back to Davies' claims.

Regarding the economics of nuclear, in both the Australian [nuclear scenario] and Global reports, nuclear is among the cheapest energy production technologies to deploy. Nuclear is even cheaper than Australia's least expensive renewable, onshore wind [Australia report, Exhibit 7 - you have to compare closely with Exhibit 5]. Globally, nuclear is the only cost neutral abatement technology [Global report, Exhibits 5 and 10].

Regarding the timeline to reduce emissions, the goals and scenarios reported and studied are out to 2020 and 2030 as well as out to 2050 for the two reports. It is unreasonable to claim that Australia is not capable of deploying nuclear power plants over a 21 to 41 year period. Even the Australia report considers nuclear in only the 2030 scenario. I have no argument with that based on my own personal experience [meaning I would not suggest nuclear be included in the 2020 study].

On nuclear's potential impact, the Australian McKinsey report [p.11] states that the power sector is Australia's greatest opportunity for future abatement [39% of the total]. Therefore any technology to help achieve this, would seem to be very attractive. Also in both reports, nuclear power's impact is among the most significant [the bar is among the widest on the graphs].

Finally, the Global McKinsey report contains some information and recommendations which I believe are relevant. Their descriptions of the magnitude of the effort are worth consideration [comparison of 10 fold increase of carbon productivity now to the 10 fold increase in labour productivity during the industrial revolution - in one third the time: 41 vs 125 years [Exhibits 2, and 4]].

But, the world has done it before [see Exhibit 7 and related discussion on CFCs and SO-2].

Saturday, 28 February 2009

Lowe's appointment - a bad thing?

A friend recently forwarded a link to Andrew Bolt's blog on Prof. Ian Lowe's appointment to the ARPANSA Safety Advisory Council as the "representative of the public interest".

Very interesting. But why?

Bolt and many others [via comments] have expressed concerns from disappointment to downright conspiracy accusations. But I don't necessarily think this is a bad development; challenging, but not bad.

Nearly two years ago, I drafted a post on Prof. Lowe titled Running some numbers. In the post I allowed myself to go 'prompt technical' - grabbing [seemingly] every credible reference and number available to cast an objective light on the professor's claims. I stand by that post and - nearly two years later - Australia's reliance on renewables remains totally inadequate to address our emission reduction targets.

Moving on

As I've posted in the past; if Australia is to embrace nuclear power, it will only happen with the support of a broad political base. The most direct path to that end is through the engagement of those with opposing views. It does little good for nuclear advocates [for or against] to discuss their arguments in the echo chambers of closed communities.

So Prof. Lowe's appointment may be a challenge in the short term; but could prove to be a tremendous opportunity. It may take more work than otherwise expected to convince Prof. Lowe on any given proposal, but if you consider this effort as an investment in building Prof. Lowe's confidence, the potential dividends could be well worth the effort further down the track.

I'd like to give the guy a chance; objectively appeal to his intelligence and sense of reason, provide him the data, patiently explain the technical bases, and let him come to his own terms with what has been presented.

You can not 'spin' physics. I am not worried.

Tuesday, 24 February 2009

High-profile pro-nuclear converts

From the UK; yesterday's Independent contained a report detailing a 'kind of like religious conversion' of four high profile environmentalists who now support nuclear power.

The four are:

  • Stephen Tindale, former director of Greenpeace;
  • Lord Chris Smith of Finsbury, the chairman of the Environment Agency;
  • Mark Lynas, author of the Royal Society’s science book of the year, and
  • Chris Goodall, a Green Party activist and prospective parliamentary candidate.

Tindale ran Greenpeace from 2000-2005. “It was kind of like a religious conversion. Being anti-nuclear was an essential part of being an environmentalist for a long time but now that I’m talking to a number of environmentalists about this, it’s actually quite widespread this view that nuclear power is not ideal but it’s better than climate change,” he added.

"Renewable sources of energy, such as wind, wave and solar power, are still necessary in the fight against global warming, but achieving low-carbon electricity generation is far more difficult without nuclear power", Lord Smith said.

Lynas:
“The thing that initially pushed me was seeing how long and difficult the road to going to 100 per cent renewable economy would be, and realising that if we really are serious about tackling global warming it the next decade or two then we certainly need to consider a new generation of nuclear power stations.”

“In retrospect, [anti-nuclear activism] will come to be seen as an enormous mistake for which the earth’s climate is now paying the price. To give an example, the environmentalists stopped a nuclear plant in Austria from being switched on, a colossal waste of money, and instead [Austria] built two coal plants.”

In a separate report, Goodall sums it up well. "This country’s current and past emissions are far more than our share of the world population. Unless we reduce our carbon pollution urgently, we will be in breach of our moral, as well as EU and UN, obligations." He adds, "Every option is strongly opposed: the public seems to be anti-wind, anti-coal, anti-waste-to-energy, anti-tidal-barrage, anti-fuel-duty and anti-nuclear. We can’t be anti-everything, and time is running out. Large projects take many years to construct."

Finally, Goodall concludes, "Germany provides a useful cautionary tale. Despite huge subsidies for solar panels, photovoltaics have not yet replaced one per cent of fossil fuel electricity generation. Indeed, because Germany – under pressure from well-meaning environmentalists – is phasing out nuclear power, it is inexorably turning back towards dirty coal: 30 new coal plants are planned, including four burning lignite (brown coal), the dirtiest fuel of all."

Plenty of parallels with Australia in this article. Relatively high per-capita emissions, the need to increase generation infrastructure to satisfy current and future demand, and the need for civil and objective public discussion to name a few.

Wednesday, 28 January 2009

Australia and GNEP

A few days ago the Australian ran a story on Government's potential not-so-transparent role in the George Bush / US initiated Global Nuclear Energy Partnership [GNEP]. The article did not provide much detail other than a review of Australian election rhetoric and Australia's apparent ongoing engagement.

I can't really understand what the fuss is about myself. Even if Australia never initiates a nuclear power program and never even ponders enrichment, reprocessing or waste storage; Australian research could do much to aid the peaceful use of nuclear technology - Silex being just one example.

But Platts contributor Daniel Horner has released a report in Nuclear Fuel [subscription required] that echos a concern I and some other Platts contributors had expressed some time ago about GNEP: that it looks - in the USA at least - to be headed the way of the Advanced Fuel Cycle Initiative [mostly cartooned websites that do not contain many dates nor receive frequent updates - never a good sign].

DOE's Global Nuclear Energy Partnership is likely to survive only in a pared-down form and in particular, without an emphasis on near-term deployment of commercial-scale reprocessing facilities, several observers have said in recent weeks.

A future GNEP could look a lot like the Advanced Fuel Cycle Initiative did before the Bush administration launched GNEP in early 2006, these sources said. GNEP, which aims to promote the growth of nuclear power in the US and around the world while developing new types of reprocessing plants and fast-neutron reactors, is largely an expanded and accelerated version of AFCI. DOE budget documents refer to AFCI as GNEP's "technology development element."
Specific challenges to ongoing US significant support to GNEP include a less enthusiastic US Executive Branch, the retirement of Senator Pete Dominichi [who, according to Horner, was not a 'wholehearted' supporter of the program.]

But GNEP [remember the 'G' is for 'Global'] may or may not be America's to scale down. Since my post almost 16 months ago, several countries including nuclear middleweights Canada, Korea and heavyweight the UK have jointed GNEP. Closing the nuclear fuel cycle makes sense to a lot of people - including many in the US according to Horner. Depending on the interest of the other program participants, the overarching goals of the GNEP could still be achieved.

So what's in store for Australia? No idea.

Tuesday, 27 January 2009

Australia should go nuclear: poll

Most Australians generally support the idea of the country having nuclear power, a new poll has found.

The study found two-thirds of the population either support nuclear power or don't have an opinion.

More at the Age

Saturday, 17 January 2009

Government rejects Science and Engineering Academy call for a nuclear Australia

In a recent report, the Australian Academy of Technological Sciences and Engineering (ATSE) puts forth a role for nuclear power in Australia's energy future - particularly if Australian carbon emissions are to be significantly reduced.

Like many before them - including UMPNER as well as other reports to be found in the lower right margin of this blog - ATSE points to nuclear as one prominent option within an array of deployed technologies including efficiency improvements and conservation.

And again, like many times past, government - this time federal Energy Minister Martin Ferguson - reiterated a firm position opposed to nuclear power deployment in Australia.

"It is the government's view that nuclear power is not needed as part of Australia's energy mix given our country's abundance and diversity of low-cost renewable energy sources," he said.

Of course the report called for more than just nuclear power, including a recommended $6 million investment in emission reduction technologies.

The report's author, Dr John Burgess said he was not disappointed by the minister's comments on nuclear power.

"I guess what we're slightly concerned about is that without nuclear energy the other technologies have to work [to achieve Australia's recently announced emission reduction targets]," he said.

Recently Australian protesters as well as public officials challenged the announced emission reduction targets of between 5 and 15 percent by 2020. Also, NASA chief Dr. James Hansen highlighted Australia's targets as inadequate in a publicly available letter to US President-elect Obama and his wife Michelle.

The Academy (ATSE) is an independent, non-government organisation dedicated to the promotion in Australia of scientific and engineering knowledge to practical purposes. It is an association of professional men and women who are elected as Fellows of the Academy on the basis of their achievement in the application of science, technology and engineering to Australian life.

SBS report

Wednesday, 7 January 2009

An interesting new poll

Recent poll results being reported by The Australian have 20% of Australians looking to nuclear power to provide the most of the nation's electricity by 2028.

The poll was conducted by UMR Research, reportedly a pollster for the Labor Party.
The full spectrum of the poll results are:
  • 26% see solar supplying the bulk of electricity
  • 23% tapped coal
  • 20% nuclear
  • 10% wind
  • 9% gas
  • 1% other

I will assume the other 11% were not sure.

Ziggy Switkowski and Leslie Kemeny both commented favourably. Switkowski sees progress toward a civilised discussion of nuclear technology. Kemeny notes an increasing awareness of nuclear's unique role in Australia's energy future.

Friday, 2 January 2009

James Hansen sends the Obamas a personal appeal

Back in March 2008, Professor [and chief NASA scientist] James Hansen sent a letter to Kevin Rudd asking for Australia's leadership in the fight against climate change. The June 5 reply may be found here.

The below correspondence is being transmitted to Barack and Michelle Obama. Much of its contents are relevant to Australia, our economy and our own struggles with respect to emissions control and climate change.

Everything has been copied below. The relevant links are here and here. [The enclosure may be found at the second link.]

Note to Jim Hansen's peers who commented on his draft letter

Thanks to the people on my e-mail list for all the suggestions (more than 100!) about my draft “Tell Barack Obama the Truth – the Whole Truth”. Most frequent criticism: the need for an executive summary. Two people suggested: put a summary in the form of a letter to Michelle and Barack Obama. I like that idea. They are equally smart lawyers, and if we can get either of them to really focus on the actions that are needed, the planet has a chance.

The letter turned out to be four pages. Sorry. But I wrote a note to John Holdren, which can serve as an executive summary. John has promised to deliver the letter, but cannot do so prior to the inauguration. That delay is a problem for one of the three recommendations: tax and dividend. Thus I am making the letter available at
http://www.columbia.edu/~jeh1/mailings/20081229_DearMichelleAndBarack.pdf
and the revised “Tell Barack Obama the Truth” at
http://www.columbia.edu/~jeh1/mailings/20081229_Obama_revised.pdf
in hopes of getting the information to people who continue to push for “goals” and “caps”.

“Goals” for percentage CO2 emission reductions and “cap & trade & dividend” are a threat to the planet, weak tea, not commensurate with the task of getting CO2 back to 350 ppm and less. Note:

(1) There must be a tax at the mine or port of entry, the first sale of oil, gas and coal, so every direct and indirect use of the fuel is affected. Anything less means that the reduction of demand for the fuel will make it cheaper for some uses; e.g., people will start burning coal in their stoves. Peter Barnes’ idea to push the cap upstream to the extent possible is not adequate nor is a ‘gas tax’ suggested by NY Times and others. A comprehensive approach is needed.

(2) “Cap & trade & dividend” creates Wall Street millionaires and complex bureaucracy. The public is fed up with that – rightly so. A single carbon tax rate can be adjusted upward affecting all activities appropriately. With 100% dividend the public will allow a carbon price adequate to the job, i.e., helping us move to the postfossil-fuel world.

(3) Supply ‘caps’ cannot yield a really big reduction because of the weapon: ‘shortages’. All a utility has to say is ‘blackout coming’ and politicians and public have to cave in – we are not going to have the lights turned out. Will the public allow a high enough tax rate? Yes, dividends will exceed tax for most people concerned about their bills.

(4) A tax is not sufficient. All other measures, such as building codes, are needed. But with millions of buildings, all construction codes and operations cannot be enforced. A rising carbon price provides effective enforcement.

(5) Wouldn’t it be cheaper to let people burn the dirtiest fuel? No. The clean future that we aim for, including more efficient energy use, is not more expensive. For example, you may have read about passively heated homes that require little energy and increase construction costs only several percent. Such possibilities remain the oddball (with high price tag), not the standard construction, unless the government adopts policies that make things happen.

Some of you suggested that I should only explain the urgency of the climate crisis, the need to get back to 350 ppm CO2 and less. Politicians are happy if scientists provide information and then go away and shut up. But science and policy cannot be divorced. What I learned in the past few years is that politicians often adopt convenient policies that can be shown to be inconsistent with long-term success, given readily available scientific data and empirical information on policy impacts.

Jim Hansen

The referenced note to John Holdren

Dear John,

A few weeks ago in London, where Anniek was running after me from one meeting to another, she had a heart attack (fortunately we were near a very good hospital -- the problem should be permanently fixed via the stent they inserted plus a better diet). As we waited a week for her to be able to fly I wrote the attached letter to the Obamas. Could you possibly forward this letter to them?

I realize that it is a long letter (4 pages + a page of footnotes). But global warming likely will be, eventually, the problem of their lifetime. His presidency may be judged in good part on whether he was able to turn the tide -- more important, the futures of young people and other life will depend on that. So four pages may not be intolerably long.

My hope is that he (even better they) will want to understand the matter, not just rely on advisers. I refer not to the details of climate science, but rather what needs to be done. The danger is that the compromises and special interests inherent in Kyoto-style targets and cap-and-trade will be accepted because of bureaucratic momentum. Other intolerable aspects of current approaches are the escape hatches (plant a tree somewhere, reduce some other gas, etc.). Carbon dioxide is special because of its strange lifetime (eventually exceedingly long) and the fact that it acidifies the ocean. Also it needs to be recognized that forestation can not be traded for more fossil fuels because the forests are needed to help bring down the current amount of CO2.

The three points that I raise concern: (1) coal, (2) carbon tax, and (3) nuclear power.

(1) The critical need to cut off the coal source soon must be recognized. I was surprised that in 90 minutes I could not get the German Environmental Minister to understand that their proposed "carbon cap" would not allow them to build 20 more coal-fired power plants. I kept saying "if you burn more coal you must convince Russia to leave its oil in the ground" and he would say "we will tighten the carbon cap". Japan thinks that it did fine in meeting its Kyoto obligations, even though its coal use and CO2 emissions increased. [Japan used Kyoto allowed escape hatches. The Earth has no escape hatch.]

(2) A carbon tax (across all fossil fuels at their source) is essential, I believe, for effectiveness. Any less comprehensive cap will reduce the price of the fuel for any other uses.

A rising tax (with all the other needed measures such as building codes, vehicle efficiencies, renewable energies...) will help constrain demand for the fuel. When gasoline hits $4 - 5/gallon again, most of that should be tax staying in the country and returned as dividend, providing the consumer the means to purchase more efficient products and incentive for entrepreneurs to develop them. A rising tax will help keep the price paid for the oil itself (or other fossil fuel) lower, thus making it unprofitable to go to the most extreme places on the planet to extract the last drop of oil. Instead we can move on sooner to the energies of the post-fossil-fuel-era.

A carbon cap that makes one more stinking millionaire on the backs of the public is going to infuriate the public. Me too. There is no need to support lobbyists, traders, and special interests. The tax should be proportional to the carbon amount and the dividend calculation will only require long division, which even a civil servant can do.

100% of the tax should go into the dividends. However, if some countries do not apply an equivalent tax, a duty should be collected on fossil-fuel dependent products imported from that country. Such import duties might be used, in part, to finance reforestation, climate adaptation, or other climate or energy related needs.

(3) Nuclear power: it would be great if energy efficiency, renewable energies, and an improved ("smart") electric grid could satisfy all energy needs. However, the future of our children should not rest on that gamble. The danger is that the minority of vehement antinuclear "environmentalists" could cause development of advanced safe nuclear power to be slowed such that utilities are forced to continue coal-burning in order to keep the lights on. That is a prescription for disaster.

There is no need for a decision to deploy nuclear power on a large scale. What is needed is rapid development of the potential, including prototypes, so that options are available. We have to avoid a "FutureGen" sort of drag-out. It seems to me that it is time to get fed-up with those people who think they can impose their will on everybody, and all the consequences that might imply for the planet, by putting this R&D on a slow boat to nowhere instead of on the fast-track that it deserves.

I hope that you will be willing to forward this to the Obamas. Wishing you the best for the holiday season, and especially success in your new job!

Best regards,
Jim Hansen

Letter to Michelle and Barack Obama

29 December 2008
Michelle and Barack Obama
Chicago and Washington, D.C.
United States of America

Dear Michelle and Barack,

We write to you as fellow parents concerned about the Earth that will be inherited by our children, grandchildren, and those yet to be born.

Barack has spoken of ‘a planet in peril’ and noted that actions needed to stem climate change have other merits. However, the nature of the chosen actions will be of crucial importance.

We apologize for the length of this letter. But your personal attention to these ‘details’ could make all the difference in what surely will be the most important matter of our times.

Jim has advised governments previously through regular channels. But urgency now dictates a personal appeal. Scientists at the forefront of climate research have seen a stream of new data in the past few years with startling implications for humanity and all life on Earth.

Yet the information that most needs to be communicated to you concerns the failure of policy approaches employed by nations most sincere and concerned about stabilizing climate. Policies being discussed in national and international circles now, which focus on ‘goals’ for emission reduction and ‘cap and trade’, have the same basic approach as the Kyoto Protocol. This approach is ineffectual and not commensurate with the climate threat. It could waste another decade, locking in disastrous consequences for our planet and humanity.

The enclosure, “Tell Barack Obama the Truth – the Whole Truth” was sent to colleagues for comments as we left for a trip to Europe. Their main suggestion was to add a summary of the specific recommendations, preferably in a cover letter sent to both of you.

There is a profound disconnect between actions that policy circles are considering and what the science demands for preservation of the planet. A stark scientific conclusion, that we must reduce greenhouse gases below present amounts to preserve nature and humanity, has become clear to the relevant experts. The validity of this statement could be verified by the National Academy of Sciences, which can deliver prompt authoritative reports in response to a Presidential requesti. NAS was set up by President Lincoln for just such advisory purposes.

Science and policy cannot be divorced. It is still feasible to avert climate disasters, but only if policies are consistent with what science indicates to be required. Our three recommendations derive from the science, including logical inferences based on empirical information about the effectiveness or ineffectiveness of specific past policy approaches.

(1) Moratorium and phase-out of coal plants that do not capture and store CO2.

This is the sine qua non for solving the climate problem. Coal emissions must be phased out rapidly. Yes, it is a great challenge, but one with enormous side benefits.

Coal is responsible for as much atmospheric carbon dioxide as the other fossil fuels combined, and its reserves make coal even more important for the long run. Oil, the second greatest contributor to atmospheric carbon dioxide, is already substantially depleted, and it is impractical to capture carbon dioxide emitted by vehicles. But if coal emissions are phased out promptly, a range of actions including improved agricultural and forestry practices could bring the level of atmospheric carbon dioxide back down, out of the dangerous range.

As an example of coal’s impact consider this: continued construction of coal-fired power plants will raise atmospheric carbon dioxide to a level at least approaching 500 ppm (parts per million). At that level, a conservative estimate for the number of species that would be exterminated (committed to extinction) is one million. The proportionate contribution of a single power plant operating 50 years and burning ~100 rail cars of coal per day (100 tons of coal per rail car) would be about 400 species! Coal plants are factories of death. It is no wonder that young people (and some not so young) are beginning to block new construction.

(2) Rising price on carbon emissions via a “carbon tax and 100% dividend”.

A rising price on carbon emissions is the essential underlying support needed to make all other climate policies work. For example, improved building codes are essential, but full enforcement at all construction and operations is impractical. A rising carbon price is the one practical way to obtain compliance with codes designed to increase energy efficiency.

A rising carbon price is essential to “decarbonize” the economy, i.e., to move the nation toward the era beyond fossil fuels. The most effective way to achieve this is a carbon tax (on oil, gas, and coal) at the well-head or port of entry. The tax will then appropriately affect all products and activities that use fossil fuels. The public’s near-term, mid-term, and long-term lifestyle choices will be affected by knowledge that the carbon tax rate will be rising.

The public will support the tax if it is returned to them, equal shares on a per capita basis (half shares for children up to a maximum of two child-shares per family), deposited monthly in bank accounts. No large bureaucracy is needed. A person reducing his carbon footprint more than average makes money. A person with large cars and a big house will pay a tax much higher than the dividend. Not one cent goes to Washington. No lobbyists will be supported. Unlike cap-and-trade, no millionaires would be made at the expense of the public.

The tax will spur innovation as entrepreneurs compete to develop and market low-carbon and no-carbon energies and products. The dividend puts money in the pockets of consumers, stimulating the economy, and providing the public a means to purchase the products.

A carbon tax is honest, clear and effective. It will increase energy prices, but low and middle income people, especially, will find ways to reduce carbon emissions so as to come out ahead. The rate of infrastructure replacement, thus economic activity, can be modulated by how fast the carbon tax rate increases. Effects will permeate society. Food requiring lots of carbon emissions to produce and transport will become more expensive and vice versa, encouraging support of nearby farms as opposed to imports from half way around the world.

The carbon tax has social benefits. It is progressive. It is useful to those most in need in hard times, providing them an opportunity for larger dividend than tax. It will encourage illegal immigrants to become legal, thus to obtain the dividend, and it will discourage illegal immigration because everybody pays the tax, but only legal citizens collect the dividend.

“Cap and trade” generates special interests, lobbyists, and trading schemes, yielding non productive millionaires, all at public expense. The public is fed up with such business. Tax with 100% dividend, in contrast, would spur our economy, while aiding the disadvantaged, the climate, and our national security.

(3) Urgent R&D on 4th generation nuclear power with international cooperation.

Energy efficiency, renewable energies, and a “smart grid” deserve first priority in our effort to reduce carbon emissions. With a rising carbon price, renewable energy can perhaps handle all of our needs. However, most experts believe that making such presumption probably would leave us in 25 years with still a large contingent of coal-fired power plants worldwide. Such a result would be disastrous for the planet, humanity, and nature.

4th generation nuclear power (4th GNP) and coal-fired power plants with carbon capture and sequestration (CCS) at present are the best candidates to provide large baseload nearly carbon-free power (in case renewable energies cannot do the entire job). Predictable criticism of 4th GNP (and CCS) is: “it cannot be ready before 2030.” However, the time needed could be much abbreviated with a Presidential initiative and Congressional support. Moreover, improved (3rd generation) light water reactors are available for near-term needs.

In our opinion, 4th GNPii deserves your strong support, because it has the potential to help solve past problems with nuclear power: nuclear waste, the need to mine for nuclear fuel, and release of radioactive materialiii. Potential proliferation of nuclear material will always demand vigilance, but that will be true in any case, and our safety is best secured if the United States is involved in the technologies and helps define standards.

Existing nuclear reactors use less than 1% of the energy in uranium, leaving more than 99% in long-lived nuclear waste. 4th GNP can “burn” that waste, leaving a small volume of waste with a half-life of decades rather than thousands of years. Thus 4th GNP could help solve the nuclear waste problem, which must be dealt with in any case. Because of this, a portion of the $25B that has been collected from utilities to deal with nuclear waste justifiably could be used to develop 4th generation reactors.

The principal issue with nuclear power, and other energy sources, is cost. Thus an R&D objective must be a modularized reactor design that is cost competitive with coal. Without such capability, it may be difficult to wean China and India from coal. But all developing countries have great incentives for clean energy and stable climate, and they will welcome technical cooperation aimed at rapid development of a reproducible safe nuclear reactor.

Potential for cooperation with developing countries is implied by interest South Korea has expressed in General Electric’s design for a small scale 4th GNP reactor. I do not have the expertise to advocate any specific project, and there are alternative approaches for 4th GNP (see enclosure). I am only suggesting that the assertion that 4th GNP technology cannot be ready until 2030 is not necessarily valid. Indeed, with a Presidential directive for the Nuclear Regulator Commission to give priority to the review process, it is possible that a prototype reactor could be constructed rapidly in the United States.

CCS also deserves R&D support. There is no such thing as clean coal at this time, and it is doubtful that we will ever be able to fully eliminate emissions of mercury, other heavy metals, and radioactive material in the mining and burning of coal. However, because of the enormous number of dirty coal-fired power plants in existence, the abundance of the fuel, and the fact that CCS technology could be used at biofuel-fired power plants to draw down atmospheric carbon dioxide, the technology deserves strong R&D support.

Summary

An urgentiv geophysical fact has become clear. Burning all the fossil fuels will destroy the planet we know, Creation, the planet of stable climate in which civilization developed.

Of course it is unfair that everyone is looking to Barack to solve this problem (and other problems!), but they are. He alone has a fleeting opportunity to instigate fundamental change, and the ability to explain the need for it to the public.

Geophysical limits dictate the outline for what must be donev. Because of the long lifetime of carbon dioxide in the air, slowing the emissions cannot solve the problem. Instead a large part of the total fossil fuels must be left in the ground. In practice, that means coal.

The physics of the matter, together with empirical data, also define the need for a carbon tax. Alternatives such as emission reduction targets, cap and trade, cap and dividend, do not work, as proven by honest efforts of the ‘greenest’ countries to comply with the Kyoto Protocol:

(1) Japan: accepted the strongest emission reduction targets, appropriately prides itself on having the most energy-efficient industry, and yet its use of coal has sharply increased, as have its total CO2 emissions. Japan offset its increases with purchases of credits through the clean development mechanism in China, intended to reduce emissions there, but Chinese emissions increased rapidly.

(2) Germany: subsidizes renewable energies heavily and accepts strong emission reduction targets, yet plans to build a large number of coal-fired power plants. They assert that they will have cap-and-trade, with a cap that reduces emissions by whatever amount is needed. But the physics tells us that if they continue to burn coal, no cap can solve the problem, because of the long carbon dioxide lifetime.

(3) Other cases are described on my Columbia University web site, e.g., Switzerland finances construction of coal plants, Sweden builds them, and Australia exports coal and sets atmospheric carbon dioxide goals so large as to guarantee destruction of much of the life on the planet.

Indeed, ‘goals’ and ‘caps’ on carbon emissions are practically worthless, if coal emissions continue, because of the exceedingly long lifetime of carbon dioxide in the air. Nobody realistically expects that the large readily available pools of oil and gas will be left in the ground. Caps will not cause that to happen – caps only slow the rate at which the oil and gas are used. The only solution is to cut off the coal source (and unconventional fossil fuels).

Coal phase-out and transition to the post-fossil fuel era requires an increasing carbon price. A carbon tax at the wellhead or port of entry reduces all uses of a fuel. In contrast, a less comprehensive cap has the perverse effect of lowering the price of the fuel for other uses, undercutting clean energy sources.vi In contrast to the impracticality of all nations agreeing to caps, and the impossibility of enforcement, a carbon tax can readily be made near-global.vii

A Presidential directive for prompt investigation and proto-typing of advanced safe nuclear power is needed to cover the possibility that renewable energies cannot satisfy global energy needs. One of the greatest dangers the world faces is the possibility that a vocal minority of anti-nuclear activists could prevent phase-out of coal emissions.

The challenges today, including climate change, are great and urgent. Barack’s leadership is essential to explain to the world what is needed. The public, young and old, recognize the difficulties and will support the actions needed for a fundamental change of direction.

James and Anniek Hansen
Pennsylvania
United States of America

i Given the brilliant scientists Barack has appointed to his team, is there need for a National Academy of Sciences meeting? Yes, his team surely would welcome not only clarification of the urgency of the climate situation, but also interdisciplinary (economics, engineering, physics, biology…) discussion and evaluation of policy options. Barack’s first year or two in office is almost surely our last best chance to get the climate and energy strategy right in time to save the future of our children and grandchildren.

ii I am not referring to the DOE’s “Generation-4” nuclear program, which is a diffuse program that will not yield rapid payoff. Instead, as discussed below, there would need to be a Presidential directive to pursue a path(s) with the potential to contribute to decarbonization of global energy systems as rapidly as practical.

iii 4th generation reactors can include automatic shutdown in case of an earthquake or other interruption. It is noteworthy that, even with the presence of poorly designed nuclear power plants in the past, and in some cases demonstrably sloppy operations, the waste from coal-fired power plants has done far more damage, and even spread more radioactive material around the world than all nuclear power plants combined, including Chernobyl.

iv Urgency derives from the nearness of climate tipping points, beyond which climate dynamics will cause rapid changes out of humanity’s control. Concern about such behavior derives not from theory or speculation, but from improving knowledge of how the Earth responded to past changes of atmospheric composition and from observations of ongoing changes.

Tipping points occur because of amplifying feedbacks. Feedbacks include loss of Arctic sea ice, melting glaciers and ice sheets, release of ‘frozen’ methane as tundra melts, and growth of vegetation on previously frozen land. The surface changes increase the amount of sunlight absorbed by Earth. Added methane reduces heat radiation to space, amplifying the warming effect of carbon dioxide produced by burning fossil fuels.

Analysis of Earth’s history helps reveal the level of greenhouse gases needed to maintain a climate resembling the Holocene, Creation, the period of reasonably stable climate in which civilization developed. That carbon dioxide level, unsurprisingly in retrospect, is less than the current 385 ppm (parts per million). The safe amount for the long-term is no more than 350 ppm, probably less. Pre-industrial carbon dioxide amount was 280 ppm. Precise definition of a safe range requires better knowledge of all climate forcing mechanisms.

What is clear is that continuing fossil fuel emissions will put Earth on an inexorable course toward an icefree state, a course punctuated by increasingly extreme disasters with hundreds of millions of climate refugees. A large fraction of species on Earth face certain extinction, if we burn most fossil fuels without capturing and storing the carbon dioxide. New species may come into being over many thousands of years, but all generations of our descendants that we can imagine will live on a far more desolate planet than the one we knew.

v Total carbon in conventional fossil fuels (oil, gas, and coal), if released to the air, is enough to initiate a dynamic transition to an ice-free climate state, a transition that would be out of humanity’s control. A large fraction of the carbon dioxide emitted in burning fossil fuels stays in the air many centuries. Thus the climate problem cannot be solved by only slowing the rate at which we burn the fossil fuels.

Solution requires that a large part of total fossil fuels is left in the ground, or the carbon dioxide captured and stored. In addition, the unconventional fossil fuels (oil shale, tar sands, methane hydrates) must be left largely untouched or the carbon dioxide captured and stored.

vi Now, with oil prices down, is when a hefty carbon tax should be added. In the future, when the price of gasoline again reaches and passes $4/gallon, most of this cost will be tax, staying in the country, spread among consumers, and driving our economy to a clean future. The public can understand this, if Barack explains it, and they will accept it, if there is 100% dividend.

vii A carbon tax requires agreement of only several major nations. If any given nation does not apply the tax, an equivalent duty can be applied to their products at ports of entry
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