Did Great Salt Lakes Trigger Mass Extinction?

It's a hot, sunny day at the equator. Standing at the edge of a great salt lake, you look out across its shimmering beauty; waves lap delicately at your feet. Far in the distance mirages weld its shores -- salt flats -- to an unbroken blue sky.
If a new theory is right, you are standing at ground zero of the greatest apocalypse the world has ever seen.

Full article by Michael Reilly on Discovery News



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