A Physicist Explains Climate Cycles

on Sunday, February 13, 2011

Jasper Kirkby gives a great lecture on our current understanding of climate cycles and explains very clearly how cycles of the sun, earth's orbit, wabble, and relative position in the galaxy affect temperature on Earth. The most fascinating topic for me was the revelation that our entire solar system orbits the milky way faster than the spiral arms, and that the earth enjoys a warm period as we pass through each spiral arm.