Billions of taxpayers dollars are wasted on politically motivated climate science, most of it on buying and running computers incapable of modeling global climate. They're incorrectly programmed so a CO2 increase causes a temperature increase to fulfill the saying "Garbage In, Garbage Out" (GIGO).
Vladimir Köppen (with Rudolf Geiger) and Charles Thornwaite each developed incredibly useful climate classification systems. These systems, which are rooted in measurements of precipitation effectiveness and vegetation, are still widely used today and contradict "official" IPCC climate science, which perverts science to support a political agenda.
The certainty with which the IPCC and AGW proponents make their claims leads to a demand for action. They have denied doubt: the science is settled, the debate is over so we must act. In fact, there is considerable doubt, so it is far wiser to do nothing.
Anyone that claims we have any idea what is really happening with global weather and climate is displaying how little they actually know. The IPCC say they are 90% certain global warming and climate change is due to human-produced CO2.
Few people understand the differences between climate and weather. Kim Greenhouse, the host of <a href="http://itsrainmakingtime.com/2009/climate-part1/" target="_blank"><em>It's Rainmaking Time!™</em></a>, interviews Dr. Tim Ball, author and ice age researcher Robert Felix (the founder of <a href="http://iceagenow.com" target="_blank">Ice Age Now</a>), and retired meteorologist Joe D'Aleo (the founder of <a href="http://icecap.us" target="_blank">ICECAP.US</a>) to outline the distinction between them once and for all.