On thin ice: Big northern lakes are being rapidly transformed

Yale 360: For more than 25 million years, Lake Baikal has cut an immense arc from southern Siberia to the Mongolian border. The length of Florida and nearly the depth of the Grand Canyon, Baikal is the deepest, largest in volume, and most ancient freshwater lake in the world, holding one-fifth of the planet’s above-ground drinking supply. It’s a Noah’s Ark of biodiversity, home to myriad species found nowhere else on earth. It’s also changing Pavelblazek/Wikimedia Commons Lake Baikal in March. Records show......

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