A multi-institutional study, led by Dartmouth Engineering Professor Hélène Seroussi, extends scientists' predictions of how greenhouse gas emissions will likely affect sea-level rise beyond the twenty‐first century.
A multi-institutional study, led by Dartmouth Engineering Professor Hélène Seroussi, extends scientists' predictions of how greenhouse gas emissions will likely affect sea-level rise beyond the twenty‐first century. Published in Earth's Future, the study is the first to combine data from 16 different ice sheet models and shows that, with continued high emissions, Antarctic's contribution to sea‐level rise increases rapidly from 2100 to 2300.
"When you talk to policymakers and stakeholders about sea-level rise, they mostly focus on what will happen up until 2100. There are very few studies beyond that," says Seroussi. "Our study puts together 16 models to provide the long-term projections that have been lacking.
"The results show that pushing beyond 2100, the gap between the low emission and high emission scenarios grows quickly, and differences in long-term impact for the most susceptible regions become exaggerated."
Nearly a quarter billion people currently live within one metre of high tide lines. The new combined model predicts that under a high emissions scenario, Antarctica could add up to 170 centimeters to sea levels by the year 2200.
Read more at Dartmouth College
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