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That Carl Sagan quote is so good! Thank you for sharing it.

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The AgWeb link reads like "Science: what is it?"

Here's an exciting read about 'global cooling' stories in the 1970s:

https://skepticalscience.com/ice-age-predictions-in-1970s.htm

Regarding agriculture itself, let's hope it's not as locked-in as sea level rise already is. But the research doesn't look good. You know, 'science,' as they say, the same stuff that put Voyager up. Whether the ag dude likes it or not, you can't really have it both ways, because your tractor, spacecraft, and agricultural research all come from the same method of thought, shockingly.

Richard Alley, at AGU in 2013, on crop yields (cued):

https://www.youtube.com/watch?v=Z_-8u86R3Yc&t=991s&ab_channel=AGU

Six short films on solving climate from the University of Cambridge Department of Engineering, and the first one also features crop yields:

https://www.eng.cam.ac.uk/news/new-resource-tick-zero-s-real-climate-solutions

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