While Garrett and Labor shamelessly arrange for large sums of money to go to Al Gore to stoke the fears of voters, Professor Flannery remains focused on the problem - and its steadily increasing magnitude.
A man of mature technical aptitude and conscience, Flannery sticks to the facts, supported by the data and draws on the relevant solutions.
See the full report filed by the AFP
Flannery said predictions in a 2001 UN report, warning the atmosphere was likely to warm by 1.4 to 5.8 degrees Celsius (2.5-10.4 Fahrenheit) from 1990 to 2100 now appeared conservative.
"In the six years since then, we've collected enough data to (check) whether those projections are valid or not," he said.
"It turns out they're not valid, but in the most horrible way -- because for the key performance indicators about climate, change is occurring far in advance of the worst-case scenario," he said.
"Carbon dioxide's increasing more rapidly, sea levels are rising more rapidly (and) the Arctic ice cap is melting away more quickly than were projected in 2001."
Flannery said nations needed to "de-carbonise" their economies by 2050, increasing reliance on geo-thermal, nuclear and renewable energy.