The video in the url below was recommended to me by YouTube. It's all-knowing algorithm thought I would be interested to watch Carl Sagan (a household name here in the U.S. from a different era when science and scientists were respected) testify to Congress in December, 1985 about climate change:
It is amazing to see how eloquently he described the greenhouse gas effect in a way that non-experts would clearly understand. In other words, there are many frustrating things about the video, but the most frustrating is that it is 1985 and science was able to articulate to non-scientists that this is a problem and it is only going to get worse.
Take care
David
David Chandler
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