Another good source for information, and some very interesting ways in which proxy data is developed, is this site.
Methane catastrophe
Total and utter BS. If the theory held water it would have happened when the planet was much hotter...guess what it didn't.
Some other info the true believers don't want you to see.
The Achilles' heel of the computer models (which form the cornerstone of CO2 fearmongering), is their failure to deal with water. As vapor, it's a more important greenhouse gas than CO2 by a factor of twenty, yet models have proven incapable of dealing with it. The global water cycle is complicated, with at least as much unknown as is known. Water starts by evaporating from oceans, rivers, lakes and moist ground, enters the atmosphere as water vapor, condenses into clouds and precipitates as rain or snow. Each transition from one form of water to another is influenced by temperature and each water form has an enormous impact on global heat processes. Clouds have a huge, inaccurately quantified cooling effect: they reflect heat received from the sun, though how much is unknown. Water on the Earth's surface has different effects on retaining the sun's heat, depending on whether the water is liquid and dark, as are the oceans, which are highly absorbent; or ice, which is reflective; or snow, which is even more reflective than ice. Such water cycle factors cause huge swings in the Earth's heat balance; they interact with global temperatures in ways that are beyond the ability of computer climate models to predict.
The first global warming modelers simply threw up their hands at the complexity of the water problem and essentially left out the atmospheric water cycle. Over time a few features of the cycle were patched into the models, all based on unproven guesses at the effect of increased ocean evaporation on clouds, the effect of clouds on reflecting the sun's energy and the effect of cloud warming on rainfall and snow. All of these "band aid" equations are hopelessly inadequate to repair the computer models' inability to describe the water cycle's role in temperature.
Besides the inability to deal with water, the other huge embarrassment facing the modelers is the well-researched and well-established fact published in many papers that temperature changes first and CO2 levels change 600 to 1,000 years later. Any rational person would immediately conclude that CO2 could not possibly cause temperature if the rise in CO2 in comes centuries after the rise in temperature. The computer modelers as usual have an involuted response: They say the temperature increase is initiated by the "relatively weak" effect of increasing heat from the sun during the rising phase of the Milankovich cycle (Milankovich's meticulously calculated cycles on rising and falling heat input from the sun are universally accepted by astrophysicists). That effect initiates the warming of the oceans, which - just as Dr. Martin Hertzberg says - releases lots of CO2. According to the modelers the released CO2 is the real culprit because it amplifies the "relatively weak" effect of the sun, turning minor warming into a really serious matter.
This is a cleverly concocted gloss which would be a wonderful argument for demonstrating that once warming starts, CO2 will make it worse and worse until all life on earth dies. Unfortunately for the climate modelers the history of the earth's many temperature and CO2 swings tells us that it obviously does not get worse and worse. After any given warming phase begins, thousands of years later the cyclical Milankovitch decrease in the sun's heat kicks in. The warming stops, reverses and an ice age ensues. Where the modelers' clever gloss founders is onm explaining how the "relatively weak" decrease in the sun's heat makes all that extra CO2 disappear. Obviously the "bad" C02 must disappear due to some "feedback" that the modelers haven't thought of yet, i.e., one that keeps the earth's climate in rough equilibrium.
Alexander Cockburn: Dissidents Against Dogma