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|a Rapid Accumulation of Committed Sea-Level Rise from Global Warming |h [electronic resource]. |
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|a Proceedings of the National Academy of Sciences. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a As carbon emissions and scientific research
have accumulated over recent years, climate
scientists have come to see global climate
change as an increasingly urgent threat (1, 2).
In PNAS, Levermann et al. (3) provide a powerful
new indicator of danger. When their
findings on the long-term sensitivity of global
sea level to global warming (∼2.3 m/°C) are
put in the context of recent research on the
sensitivity of global temperature to cumulative
carbon dioxide emissions (4), simple
analyses suggest (described below) that we
have already committed to a long-term future
sea level >1.3 or 1.9 m higher than today and
are adding about 0.32 m/decade to the total:
10 times the rate of observed contemporary
sea-level rise (5). By midcentury, the central
estimate of commitment would rise to >3.1
m assuming today’s trends continue or to 2.1
m under an aggressive emissions cutting and
atmospheric carbon dioxide removal scenario.
Both scenarios threaten the future
viability of many hundreds of coastal municipalities
in the United States alone, but the
low emissions path would likely spare hundreds
more, including many major cities. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|t Rapid Accumulation of Committed Sea-Level Rise from Global Warming |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060973/00001 |y Click here for full text |
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|3 Host material |u http://www.pnas.org/content/110/34/13699.extract |y Rapid Accumulation of Committed Sea-Level Rise from Global Warming |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/73/00001/Strauss_2013_Rapid accumulation of committed sea-level rise from global warmingthm.jpg |
