Category Archives: Earth Science

Oceans set stage for human evolution Temperature changes off the coast dried out East Africa 2 million years ago

By Alexandra Witze Web edition : Saturday, February 18th, 2012   Text Size VANCOUVER — Scientists may now be able to explain one of the key events that shaped human history: why East Africa got drier starting around 2 million years ago, with forests giving way to grasslands on which Homo could further evolve. Ocean temperature changes, especially the arrival …

February 21, 2012 – 00:43 | By Roy Wright | Posted in Earth Science | Comments (0)

Doomsday: How BP Gulf disaster may have triggered a ‘world-killing’ event

by Terrence Aym Ominous reports are leaking past the BP Gulf salvage operation news blackout that the disaster unfolding in the Gulf of Mexico may be about to reach biblical proportions. 251 million years ago a mammoth undersea methane bubble caused massive explosions, poisoned the atmosphere and destroyed more than 96 percent of all life …

July 13, 2010 – 03:35 | By Roy Wright | Posted in Earth Science | Tagged | Comments Off