@DarkScribe “Man has made a massive reduction in CO2 pollution, not increased it.”
Humans have been around for say somewhere between 100000 and 200000 years. CO2 levels in the atmosphere have varied from between 180ppm (glacials) and 300ppm (inter-glacials) over the last 800000 years, and are unlikely to have exceeded present levels for 20 million years. Presently atmospheric concentrations are at approximately 387ppm with the majority of the increase seen over the past 150 years (over the relatively stable 260–280ppm conditions of the last 10000 years) arising due to the burning of fossil fuels, landuse change, cement and meat production. No natural process can account for more than a minority proportion of the increases in ghg observed last century, nor for the majority of observed temperature increases.
So how you come to the conclusion that we have reduced CO2 is beyond me.
“I don’t believe that we are the problem, it has been happening for millions of years, well before mankind started fooling around.”
Sure, climate change has been happening for billions of years. And? This is akin to arguing that because forest fires can be started by lightning there is no such thing as an arsonist.
“There was more CO2 pollution before the arrival of mankind – something green bias tends to overlook.”
Absolutely. 45 million years ago levels were about 1000–1500ppm. Once again…and?
Climate change can result from multiple processes with GHG concentrations acting as an extremely important positive feedback mechanism (for isntance to Milkankovitch cycles, solar output, etc), or as a catalyst (as in the case of anthropogenic ghg emissions).
Human civilizations developed not over geological time scales, but during the relative climate stability observed during the last 10,000 years. Relatively small changes to GHG have large impacts on the Earths climate system (the Earth would be 33 degrees cooler without GHG in the atmosphere, despite the fact that GHG only make up approximately 1% of the atmosphere). We have increased atmospheric concentrations of CO2 by 35%. We have known the potential impact of such changes since the beginning of the 1900s (see Svante Arrhenius). The world’s National Academies of Science are at the forefront of calling for reduced emissions, the “greenies” are approxiately following their lead. I just don’t understand how you have arrived at your conclusions.
http://royalsociety.org/downloaddoc.asp?id=5450
I also suggest you read the following. It is an evidence based source which addresses many climate change fallacies, some of which you appear to be partial to.
http://www.climateworksaustralia.org/Q_and_A.pdf