well. this is the thing about science. it's based on fact and evidence. in the 70s overall temperatures were falling. One note of evidence. White birch began growing south of the great lakes.
If you are not concerned that the ph level in the oceans is changing after being stable for 400,000 years than that is your personal perspective.
If others find this trend worrisome. That's understandable. From personal experience, as a diver, i have seen some of the most beautiful coral in the world. I recently dove Key West. The corals there are dead. Bleached white by increased water temperatures. There are no pretty colours, no wonderous fans, no fish. And, increasingly, no dive tourists.
If the US is reducing CO2 emissions they don't do so in a vacuum. China and India are both dramatically increasing CO2 output.
I've never understood why the US is so anti climate change. Boy it's like they take it as an assault on their ability to drive a car or have a job.
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