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Originally Posted by BrianH  No Kirk, I have never said that CO2 does not cause any warming of the earth. You claim that humans are causing global warming by the amount of CO2 they've put in the atmosphere. Considering the earth has warmed numerous times before (whether CO2 initiated or not), that doesn't mean that it's caused by humans. Look up pine-beetles. LIke I've said a million times before on these boards, I do believe the earth may be warming, and I do believe that humans do contribute to green-house gases, but they are not the main source or the main cause of the warming of the earth. You are attributing way too much to humans when the earth's climate has changed dozens of times without human help. You cannot PROVE that humans are causing global warming. |
You cannot prove that CO2 is not the source of global warming either. The only other thing that could cause the earth to heat so quickly is the sun, and the Stanford University solar scientists report that the sun has not increased its radiation enough to cause the degree of warming we are seeing.
The scientists who study climate are convinced that this warming is man-made. There are a few who disagree, but the vast majority are in agreement. They can use computers to build climate models that can tell them what a one third increase in CO2 will do. And don't be fooled. This is just the beginning. We are actually increasing our output of CO2.
We melted the North Pole in 50 short years for Christ's sake!