Global Warming Facts
1 Temperatures have been cooling since 2002, even as carbon dioxide has continued to rise.
2 Carbon dioxide is a trace gas and by itself will produce little warming. Also, as CO2 increases, the incremental warming is less, as the effect is logarithmic so the more CO2, the less warming it produces.
3 CO2 has been totally uncorrelated with temperature over the last decade, and significantly negative since 2002.
4 CO2 is not a pollutant, but a naturally occurring gas. Together with chlorophyll and sunlight, it is an essential ingredient in photosynthesis and is, accordingly, plant food.
5 Reconstruction of paleoclimatological CO2 concentrations demonstrates that carbon dioxide concentration today is near its lowest level since the Cambrian Era some 550 million years ago, when there was almost 20 times as much CO2 in the atmosphere as there is today without causing a “runaway greenhouse effect.”
6 Temperature changes lead, not lag, CO2 changes on all time scales. The oceans may play a key role, emitting carbon dioxide when they warm as carbonated beverages lose fizz as they warm and absorbing it as they cool.
7 Most of the warming in the climate models comes from the assumption that water vapor and precipitation increase as temperatures warm, a strong positive feedback. Water vapor is a far more important greenhouse gas than CO2. However, that assumption has been shown in observations and peerreviewed research to be wrong, and in fact water vapor and precipitation act as a negative feedback that reduces any small greenhouse warming from carbon dioxide.
8 Indeed, greenhouse models show the warming should be greatest at mid to high atmosphere levels in the tropics. But balloon and satellite observations show cooling there. The greenhouse signature or DNA does not match reality, and the greenhouse models thus must greatly overstate the warming – and in a court of law would have to be acquitted of any role in global warming
9 Antarctic ice has been increasing and the extent last year was the greatest in the satellitemonitoring era. We are running ahead of last year’s record pace.
