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Antarctic ice sheet could suffer a one-two climate punch

from Science Blog

The pacing of the most recent ice ages, for example, is attributable to changes in the shape of our planet's orbit around the sun as well as to cyclic changes in the tilt of the Earth on its axis and its "top-like" wobble on that axis, all of which combine to influence the distribution and intensity of solar radiation. Now, it turns out that variations in the axial tilt — what scientists call "obliquity" — of the planet have significant implications for the rise and fall of the Antarctic Ice Sheet, the miles-deep blanket of ice that locks up huge volumes of water that, if melted, would dramatically elevate sea level and alter the world's coastlines. more


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