July 19, 2013--Study: Long-term sea level rise is inevitable (Summit Voice)

Sea level rise is here to stay, according to researchers with the Potsdam Institute for Climate Impact Research, who recently published a study combining evidence from early Earth’s climate history with comprehensive computer simulations using physical models of all four major contributors to long-term global sea-level rise. The results show a slow but inexorable rise — less than six feet by the end of this century — but the rate will increase as melting Antarctic and Greenland ice become bigger factors. Based on the Earth’s climate history, the long-term outlook is pretty clear. When CO2 levels were comparable to current values, the Earth was much warmer and sea levels were much higher. The greenhouse gases that have already accumulated in the atmosphere will cause sea level to rise for centuries to come. Each degree of global warming is likely to raise sea level by more than 2 meters in the long-term, according to the study, published recently in the Proceedings of the National Academy of Sciences.

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