2016-07-14. Here’s how the world could end—and what we can do about it.

posted Jul 19, 2016, 11:53 AM by Alan Gould
By Julia Rosen, Science. For GSS A Changing Cosmos chapter 1. A treatment of 3 different threats: Solar storms; Cosmic collisions; Supervolcanoes.  http://www.sciencemag.org/news/2016/07/here-s-how-world-could-end-and-what-we-can-do-about-it
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