Climate Change

Much is being said about climate change: is it real?  Are we causing it?  What can be done?  I have recently come across three fascinating discussions of how human-caused increases in atmospheric carbon dioxide may relate to various natural cycles, and how, too, it provides an amazing object lesson in the fine-tuning of the Earth and solar system.   Essential reading/listening.

How Ice Ages Happen:

The Hiawatha Asteroid:

Geologist Dan Britt, Orbits and Ice Ages: the History of Climate (2012):


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