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27 June 2009 @ 12:25 pm
Mr. MP it's as easy as 1 2 3  

QUESTION 1
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Is it the case that CO2 increased by 5% since 1998 whilst global temperature cooled over the same period (see Fig. 1)?
If so, why did the temperature not increase; and how can human emissions be to blame for dangerous levels of warming?
QUESTION 2.
Is it the case that the rate and magnitude of warming between 1979 and 1998 (the late 20th century phase of global warming) was not unusual in either rate or magnitude as compared with warmings that have occurred earlier in the Earth's history (Fig. 2a, 2b)?
If the warming was not unusual, why is it perceived to have been caused by human CO2 emissions; and, in any event, why is warming a problem if the Earth has experienced similar warmings in the past?
QUESTION 3.
Is it the case that all GCM computer models projected a steady increase in temperature for the period 1990-2008, whereas in fact there were only 8 years of warming were followed by 10 years of stasis and cooling. (Fig. 3)?
If so, why is it assumed that long-term climate projections by the same models are suitable as a basis for public policy making?

Answers to these questions have been requested of the Australian government's Climate Change Minister Penny Wong, the Chief Scientist, Professor Penny Sackett and Professor Will Steffen. Our government needs answers to them too.