Even if we take actions immediately to slow the pace of melting in Antarctica, however, we may already be committed to an additional 1 m (3.3 ft) of global sea level rise during this century. This is in addition to the 1 meter already estimated by the IPCC for this same period. The fact is, we don’t know how to adapt to such a pace. As glaciologist Richard Alley of Pennsylvania State University pointed out when these studies were released, crossing this tipping point in Antarctica means that we are now committed to a global sea level rise equivalent to a permanent Hurricane Sandy-size storm
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