SIO40lecture22

SIO40lecture22 - SIO 40 Life and Climate on Earth Nov. 24,...

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SIO 40 – Life and Climate on Earth Nov. 24, 2010 Lecture 22 – Vulnerability and adaptation to climate change
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Lecture summary - Societal vulnerability - Ecosystem vulnerability to climate change - Mega deltas - The benefits of adaptation to climate change - The economics of climate change
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Societal regions especially vulnerable to climate change: The Arctic region, due to high rates of projected warming. Africa, especially the sub-Saharan region, due to low adaptive capacity and projected climate change. Low-lying coasts/deltas and small islands, due to population density, sea level rise, and exposure to storm surge and flooding.
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Climate change vulnerability in 2050 The vulnerability of each country or region is related to its adaptive capacity, ie. its ability to respond successfully to climate variability and change. This map shows a projection of global vulnerability to climate change in 2050, based on the A2 emissions scenario and assuming current adaptive capacity.
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Distribution of major terrestrial biomes Equator 30 ° N 30 ° S The range and latitudinal distribution of terrestrial and oceanic ecosystems (or biomes) is closely tied to the latitudinal distribution of climate. Thus, one expected ecosystem response to climate change is a geographic shift – eg. tropical and subtropical biomes will migrate to higher latitudes as global average temperatures increase. This will apply stress to ecosystems.
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Ecosystems likely to be strongly impacted by climate change: Terrestrial: Tundra, boreal forest, and mountain ecosystems are vulnerable to increasing temperatures in high northern latitudes and at higher elevations; mediterranean-type climates are
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This note was uploaded on 05/02/2011 for the course SIO 40 taught by Professor Barbeau,k during the Fall '08 term at UCSD.

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SIO40lecture22 - SIO 40 Life and Climate on Earth Nov. 24,...

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