I have seen quite a bit of evidence supporting global warming. From my perspective, to deny that it is happening or that human consumption is not the root cause is just naive. What else would be driving the warming. Yes, there have been past temp swings, but nothing as drastic as what is currently happening. The reality of it all is that economics are against doing anything proactive about it - there is no money in changing and a lot of money invested in the status quo - big business, fossil fuels, etc.
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