http://www.middlebury.net/op-ed/global-warming-01.html
http://globalwarminghoax.wordpress.com/
http://www.youtube.com/watch?v=Io-Tb7vTamY
http://www.youtube.com/watch?v=WKAC4kfHruQ
These do, or probably do, say it is a hoax. Now, does this persuade you?
Again, the first one assumes it is natural, this time on the basis of a Canadian Scientist who said there were solar cycles lasting 1.500 years. But the temperature graphs show such big increases over such a short amount of time that it's unbelieveable that a cycle of 1.500 years could change it so fast. It should change slowly and even over time, not just "randomly" spike while our CO
2 emission is at it's highest.
Also, it states that CO
2 is a very weak greenhouse gas, even though it doesn't deny it. But look at
Venus. It's atmosphere is made up of 96,5% CO
2. Even though it's atmosphere is also more dense, resulting in a pressure on the surface that is 90 times bigger, the greenhouse effect should be clear with it's mean temperature of 735 Kelvin. What we're talking about on Earth is only a few degrees, but those could mean the difference between being able to have agriculture in many places, the icecaps melting and rising the ocean level etc., and giving more extreme weather. I wonder what Venus' temperature would be without CO
2.
It also argues that the rising temperature is causing increased levels of CO
2. But that doesn't make any sense. We all know that we burn fossil fuels, and that we create CO
2 in the proces. And we're doing it on a pretty large scale, with all these billions of cars, airplanes, motorbikes and all those things, the power plants and factories. It's an absurd statement to blame the increased amount of carbondioxide on the increased temperature, when the burning of fossil fuels etc. are clearly emitting teragrams of CO
2.