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Originally Posted by White Doors
Ok, take what you just said and realize these facts:
Humans contribute 0.14% of the total GHG's.. The current warming cycle started in the 1860's, well before the internal combustion engine and millions of cars and coal fired power plants. The world was much warmer, even in human recorded history, than it is now.
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I'm not sure where you are getting your information from. First of all, the 1860s corresponds exactly with the time that we would expect human induced global warming to start. Steam engines were widely used, and they were huge emitter of carbon. That, combined with deforestation, would undoubtedly affect the atmosphere. In fact, the atmosphere was likely even more polluted back then.
Secondly, if you look at the graphs provided here:
http://globalwarming.sdsu.edu/
The second graph that illustrates global climate changes in the past 1000 years, and never have they peaked as quickly or as high as they have since the industrial revolution.
I'm not defending or promoting the Kyoto Protocol, but there is little doubt that human induced climate change is occuring. The lab that I work in is actually studying the effects of N20 emmissions (which is probably even a bigger problem than carbon dioxide). The recent climate changes on any model I've seen are impossible to explain without including the expected effects of the greenhouse effect based on what we know about modern physics, and in particular, the effect carbon dioxide and other greenhouse gasses have on trapping heat in the atmosphere.
Something else to consider:
http://news.nationalgeographic.com/n...xtinction.html
Is that not worth practicing the precautionary principle?