14 March 2019

Tectonics in the Tropics ~ Ice Age Triggers!

Jennifer Chu of MIT News spotlights recent research indicating that Tectonics in the Tropics Trigger Earth’s Ice Ages...
"Over the last 540 million years, the Earth has weathered three major ice ages [each] preceded by tropical “arc-continent collisions” -- tectonic pileups that occurred near the Earth’s equator -- in which oceanic plates rode up over continental plates, exposing tens of thousands of kilometers of oceanic rock to a tropical environment.  [The] heat and humidity of the tropics likely triggered a chemical reaction between […] the rocks’ calcium and magnesium […] pulling the [CO2] out of the atmosphere and permanently sequestering it in the form of carbonates such as limestone [cooling] temperatures globally and ultimately [setting] off an ice age."

Beyond the Cradle ~ Media Lab x Outer Space!

Excellent to see the third year of Beyond the Cradle organized by the Space Exploration Initiative at MIT Media Lab today! Great talk by Nobel physicist Prof Sam Ting this morning plus SF panel featuring Daniel Suarez (of Daemon, FreedomTM, and Influx fame, with Delta-v coming soon!) among others! See live video!