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Consequences of Climate Change:�Sea Level Rise

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Albedo � Positive Feedback Loop

different surfaces have different level of reflectivity
Ice reflects more light than other substances
Snow reflects 95% of radiation
The water under the ice can absorb large amounts of heat energy, which could increase temp of water and cause more melting

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Climate changes impact:

which, in turn, impact:

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Recent Sea Level Rise�tidal and satellite records from 1880 to 2005

http://www.globalwarmingart.com/wiki/Image:Recent_Sea_Level_Rise.png

SEA LEVEL RISE

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Sea-level rise�Heavily populated delta regions that are vulnerable to sea level rise

Image: idrc.ca

IMPACTS ON COASTAL AREAS

If you have an internet connection, go to the following websites at this point and explore how rising sea levels would affect different regions of the globe. If time permits and students have access to computers, you may wish to let students explore this site in pairs or small groups. The following regions are particularly vivid examples of the impacts of sea-level rise on heavily populated coastal regions. More than 100,000,000 people live in these regions. Encourage students to think about the effects of such massive number of refugees from these major metropolises.

San Francisco Bay Area: http://flood.firetree.net/?ll=38.0308,-122.4426&z=8&m=0&t=1

Manhattan: http://flood.firetree.net/?ll=40.7551,-74.0293&z=6&m=0&t=1

Florida: http://flood.firetree.net/?ll=28.0914,-82.2876&z=10&m=0&t=1

The Netherlands: http://flood.firetree.net/?ll=52.2278,5.8447&z=10&m=0&t=1

Beijing: http://flood.firetree.net/?ll=38.5310,116.8781&z=10&m=0&t=1

Shanghai: http://flood.firetree.net/?ll=32.8704,119.5642&z=10&m=0&t=1

Calcutta & Bangladesh: http://flood.firetree.net/?ll=22.9786,89.3793&z=9&m=0&t=1

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What about the Bay Area?

Sea level rise is an important consequence in coastal areas like the Bay Area