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|a Greenhouse Effect Sea Level Rise and Coastal Wetlands |h [electronic resource]. |
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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 Increasing atmospheric concentrations of carbon dioxide and other gases released by human
activities are generally expected to warm the earth a few degrees (C) in the next century by a
mechanism commonly known as the "greenhouse effect." Such a warming could raise sea level
by expanding ocean water, melting mountain glaciers, and eventually causing polar ice sheets to
slide into the oceans. Unfortunately, it is not yet possible to accurately predict future sea level.
Estimates for the year 2025 range from five to fifteen inches above current sea level, while
estimates of the rise by 2100 range from two to seven feet. Although the timing and magnitude
of future sea level rise is uncertain, there is an emerging scientific consensus that a significant
rise is likely.
To further society's understanding of how to rationally respond to the possibility of a
substantial rise in sea level, EPA has undertaken assessments of the impacts of sea level rise on
economic development, beach erosion control strategies, salinity of estuaries and aquifers, and
coastal drainage and sewage systems. Those studies have generally found that even a one-foot
rise in sea level has important implications for the planning and design of coastal facilities.
This report examines the potential impacts of sea level rise on coastal wetlands in the United
States. Coastal marshes and swamps are generally within a few feet of sea level, and hence
could be lost if sea level rises significantly. Although new wetlands could form where new areas
are flooded, this cannot happen where the land adjacent to today's wetlands is developed and
protected from the rising sea. Once built, neighborhoods can be expected to last a century or
longer. Therefore, today's coastal development could limit the ability of coastal wetlands to
survive sea level rise in the next century.
Chapter I provides an overview of the greenhouse effect, projections of future sea level rise,
the basis for expecting significant impacts on coastal wetlands, and possible responses. Chapters
2 and 3 present case studies of the potential impacts on wetlands around Charleston, South
Carolina, and Long Beach Island, New Jersey, based on field surveys. Chapter 4 presents a first
attempt to estimate the nationwide impact, based on topographic maps. Finally, Chapter 5
describes measures that wetland protection officials can take today. This report neither examines
the impact of sea level rise on specific federal programs nor recommends specific policy
changes. |
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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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|a Atmospheric greenhouse effect. |
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|a United States Environmental Protection Agency. |
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|a James G. Titus. |4 edt |
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|t Greenhouse Effect, Sea Level Rise, and Coastal Wetlands |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15060949/00001 |y Click here for full text |
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|3 FULL TEXT- Greenhouse Effect, Sea Level Rise, and Coastal Wetlands |u https://nepis.epa.gov/Exe/ZyNET.exe/9100YKEX.TXT?ZyActionD=ZyDocument&Client=EPA&Index=1986+Thru+1990&Docs=&Query=&Time=&EndTime=&SearchMethod=1&TocRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&IntQFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%5C86thru90%5CTxt%5C00000026%5C9100YKEX.txt&User=ANONYMOUS&Password=anonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality=r75g8/r75g8/x150y150g16/i425&Display=hpfr&DefSeekPage=x&SearchBack=ZyActionL&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPage=x&ZyPURL |y Greenhouse Effect, Sea Level Rise, and Coastal Wetlands |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/09/49/00001/Titus_Kana_1988_Greenhouse Effect, Sea Level Rise, and Coastal Wetlandsthm.jpg |
