Global Catastrophes VSI
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Meteorites will kill us…or maybe a volcano or our own stupidity. Landslides could flood the US East Coast.
Global Catastrophes
- It’s meteorites, and them alone
- Cause of ice ages and Milankovitch Cycles p52-56
- Orbit more or less elliptic, over 100,000 years
- Axis of rotation (obliquity) moves from 21.5 degrees to 24.5 over 41,000 years
- Procession of axis of rotation causes nearest point in elliptical orbit to be northern winter or summer, 23,000 years
- p56-7 Little Ice Age
- p97 Oort Cloud of comets beyond Pluto
Deets
- Bill McGuire
- Volume 145
- Published 2014 (2nd edition)