Quote:
Originally Posted by alex.s
what difference does it make if global warming / climate change is "natural" or not. we know co2 is the main contributor to climate change in our current environment. we know what that will do. we don't want that to happen. we can take steps to reduce that. so why not take those steps? if it is natural or not, it will effect us negatively. so why not do something about it?
co2 output of all animals and plants combined including human agriculture is roughly 2% of the total yearly co2 output. human fossil fuel burning is responsible for the other 98%.
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It actually makes a huge difference if climate change is "natural" or not. If it's natural then the assumption that the reduction of anthropegenic CO2 will reduce temperature may not be correct.