- #1
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Let's suppose that, as many of the posters here believe, there is a good possibility that global warming is not priimarily caused or even signficantly contributed to by human CO2 emissions. Let's suppose that there is a very good possibility also that CO2 concentrations are not signficantly higher than they were a 100 years ago.
What seems to me to be incontestible is that fossil carbon is being brought into the biosphere by humans. It is also incontestible that much of this carbon was deposited by plants that grew in an atmosphere much richer in CO2 and much less rich in O2.
Given the consequences for life on Earth of global warming, is it not reasonable to be cautious and limit CO2 emissions as much as possible even if there is a good chance it is not occurring?
I don't pass going up hills. It is not because I am sure there is something coming. There seldom is. I exercise reasonable precaution because I don't really know.
AM
What seems to me to be incontestible is that fossil carbon is being brought into the biosphere by humans. It is also incontestible that much of this carbon was deposited by plants that grew in an atmosphere much richer in CO2 and much less rich in O2.
Given the consequences for life on Earth of global warming, is it not reasonable to be cautious and limit CO2 emissions as much as possible even if there is a good chance it is not occurring?
I don't pass going up hills. It is not because I am sure there is something coming. There seldom is. I exercise reasonable precaution because I don't really know.
AM