Resolved: Co2 Theory is false.

Resolved: Co2 Theory is false. Definitions: Co2 Theory: Greenhouse Effect False: Not real Case: I. Temperature Record One central problem for those who promote the idea of man made global warming is the earth's temperature record – on almost all time scales. In the last decade, there has been no clear warming trend (as the UK Met Office and IPCC's own figures demonstrate). In the last century, much of the warming occurred prior to 1940, when human emissions of CO2 were relatively small compared to today. During the post-war economic boom (when one would have expected the temperature to rise) the world cooled, from the 1940s till the mid-70s (again, this is evident from accepted data used by the IPCC). But it's important to look back further in time 1,000 years. The climate record which used to be accepted as the standard account of this period was published in the first IPCC report. But this account posed a problem. A thousand years ago there was time a warm period – apparently warmer than today (known to climatologists as the Medieval Warm Period). This was followed by a relatively cold period (known as the Little Ice Age), from which, over the past two to three hundred years, seem to have made a slow, welcome recovery. This was all rather undermined the idea that current temperatures were either unusual or alarming. In subsequent IPCC reports the original graph was replaced by another – the famous ‘Hockey Stick' (so-called because it looks like one). The Hockey Stick was a lot more dramatic, and was featured proudly on the top of the front page of the new IPCC reports. But was it true? The Hockey Stick debate is very telling, and we urge readers to review the links below. Further back in time, still within our current ‘interglacial period, we find more warm spells – notably what geologists call the ‘Holocene Maximum' when, for a few thousand years, the earth was significantly warmer than we find it today. Over longer time periods of course, the earth has been far, far hotter than it is today (with tropical forests covering much of the earth) and also far, far colder, with much of the earth buried under miles of ice. The Earth's climate has always changed, and changed without any help from us. But there is another problem, a very major problem, for those who promote the idea of CO2-led global warming. According to global warming theory, if an enhanced greenhouse effect is responsible for warming the earth, then the rate of temperature rise should be greatest in that part of the earth's atmosphere known as the troposphere, specifically in the tropics. And yet the observations, from weather balloons and satellites have consistently shown that not to be the case. I urge readers to look at the Christy et al papers below. The latest one was recently published in the Journal of Geophysical Research (2007). II. CO2 & Temperature The ice-core data is frequently cited as principal evidence to argue that CO2 is the earth's main climate driver. It is, in a way, the jewel in the crown of the theory of man made global warming. But the ice-core data does not show that CO2 drives climate. It shows, very clearly, that variations in temperature precede rises in atmospheric CO2 – not the other way round. The two phenomena are divided by a time lag of several hundred years. There is no evidence that CO2 has ever ‘driven' the climate in the past, nor is there any compelling evidence that it is doing so now. According to global warming theory, if an enhanced greenhouse effect (from increased levels of CO2 or indeed any other greenhouse gas) is responsible for warming the earth, then the rate of temperature rise should be greatest in that part of the earth's atmosphere known as the troposphere, specifically in the tropics. And yet the observations, from weather balloons and satellites have consistently shown that not to be the case. I urge readers to look at the Christy et al papers below. The latest one was recently published in the Journal of Geophysical Research (2007). This may seem like a rather technical issue, but it strikes at the very heart of the theory of man made global warming. *I ask the debate community decide on facts/evidence and the actual debate rather then personal preference. Sources: IMPORTANT: Letter from 4 leading scientists to the IPCC: http://www.ilovemycarbondioxide.com...