1. When did the debate end? We have been told for some years now that the "debate is over". When did this happen? Who determined it? If the "debate is over" then why are serious scientists arguing against CO2 as the cause of climate change? Are they ALL in the pocket of Big Oil?
2. How is the science settled? Leaving aside the arguments about the cause of global warming, if "the science is settled" then why are the predictions from the IPCC's First Assessment Report different to the Second Assessment report different to the Third Assessment Report and different to the Fourth Assessment Report?
3. How do you explain this? The following graph plots temperature anomaly against CO2 Concentration and Sunspot Cycle Length. How do you explain the remarkable correlation with sunspots and why do you believe that CO2 is the main determinant of climate change?4. What the heck has happened to the Hockey stick? The IPCC Third Assessment Report introduced the world to the iconic Hockey Stick graph, which was used to underpin the arguments that 1) man made CO2 was the main factor in climate change since the start of the Industrial Revolution; and 2) the consequences of not addressing CO2 would be a huge rise in temperature of up to 5.8 degrees Celsius? Given all of the hype surrounding the Hockey Stick and the vigorous defence of its accuracy in spite of undeniable evidence of its statistical impossibility, why is it not prominent in the recently released Fourth Assessment Report?
5. Why believe climate models? Climate models have an appalling predictive record and could only model 20th century climate by applying more modifications than a Swiss Army Knife has gadgets, an exercise in back-fitting that would cause any first year statistician to throw their hands up in disgust. Climate models don't factor in the effect of the sun, which seems a bit of an oversight given the graph above, or the greatest greenhouse gas, water vapour. Given that the two most major determinants of climate are missing from the models why do you believe their predictions?
6. Why is symbolism more important than effectiveness? The Kyoto Protocol has been shown by both sides of the debate to be an initiative that would make no discernible difference to our climate (around 0.1 degrees Celsius by 2050) and cost trillions of dollars. Those in favour of it claim that it is a 'symbolic first step' while the other side rejects its lack of effectiveness. Australia is leading the world in the development of clean coal technologies that, when exported to China and India, will make more difference than ten Kyoto Protocols. Why is symbolism more important than effectiveness?
7. Why the IPCC censorship? The IPCC reports are the result of a large number of scientists providing input with each section being overseen by a lead author. Many scientists have claimed that their work was ignored because it disagreed with the basic tenets being promoted by the IPCC. If the "science is settled" then why does the IPCC have to actively censor contributing scientists?
8. Why are all the predictions of only doom and gloom? From inundation of our coastal cities to increasing drought, famine and pestilence on a Biblical scale why are all of the predictions about a rise in temperature always bad when it's clear that life on earth has historically thrived when the climate has been warmer than today?
9. What caused the Medieval Warm Period and Little Ice Age? The MWP (~850-1250) was a period of higher than average temperatures. It is no coincidence that life on the planet thrived at this time. Greenland and Iceland were settled, the Arctic sea ice retreated and they even grew wine grapes in England. The LIA (~1350-1850) was a period of especially cold temperatures and it is no coincidence that life on earth had a particularly difficult time. In the winter of 1780, New Yorkers could walk from Manhattan to Staten Island across a frozen New York Harbour. In England the river Thames froze over giving the opportunity for people to hold ice fairs. In the Netherlands rivers and canals also froze over allowing skating and frost fairs to be held. Al Gore's documentary clearly shows that there's a relationship between temperature and CO2 with the implication that the latter causes the former. If CO2 is the main determinant of climate then where did it come from to cause the MWP and where did it go to cause the LIA?
10. Why the hooey about sinking islands? It strikes me as suspicious that all of the so-called evidence for rising seas comes from places so out of the way that the average person has no way of verifying the claims. Such is the case with Tuvalu which, it is claimed, is the canary in the global warming coal mine. However, to geologists the whole notion is absurd. Tuvalu sits on the crest of two tectonic plates and has been rising and falling throughout its history. After selling their .tv Internet domain name for $40 million the small population has clearly worked out that they can scam more money from rich nations by jumping on the global warming bandwagon. In PNG it's the Takuu Islands and in India it's the Sunderbans. All are affected by tectonic activity. Why the hooey about sinking islands?