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19 Cards in this Set
- Front
- Back
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What are the causes of Global Warming? |
Anthropogenic changes (Humans) Natural changes Feedback Mechanisms |
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What are the Anthropogenic changes? |
Greenhouse gases e.g. burning fossil fuels |
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What are the Natural changes? |
Incoming solar radiation Changes in earths orbit and tilt Natural greenhouse effect Volcanic activity and meteor strikes |
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What are the feedback mechanisms?
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Artic icecap Tundra/Permafrost Ocean floor ( frozen methane on bottom) |
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What is ClimateGate?
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On Nov 2009 1000 private emails published online from Uni of E.Anglia just before UN summit |
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What were they accused of? |
Manipulation or hiding of data, trying to block requests for raw data. Sopped journal papers they disagreed with from being published |
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What were the issues? |
Access to data Questioning scientists integrity |
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Example of an Environmentalist? |
Al Gore ( ex vice president of US) |
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Example of a Climate Sceptic |
Professor Fred Singer |
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What do Environmentalists believe? |
Reliable evidence to suggest temp and CO2 increase and rise has been too abrupt to be explained by natural causes |
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What do Climate Sceptics think?
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Evidence unreliable as involve a lot of guess work and temp increases faster before industrial revolution |
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What are the effects of Global Warming? |
African Wet and Dry More extreme Weather (Link to TRS) |
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What is the African Wet and Dry? |
More rain at equator due to Sahara heating up and drawing moisture Drought leading to decertification in sub saharan countries |
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How has it effected Britain?
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Temperature increase- Vineyard n grapes Disease and Pests- Risk of Malaria Sea level rise- Flooding may occur Increases intensity of rainfall- flooding Tourism increase on coast unless flooded Gulf Stream- brings heat from Mexico and sinks near greenland which if melted would stop this |
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Local Responses to Global Warming? |
Car sharing Turning of appliances and lights Insulation Less abroad holidays Walking + cycle to work scheme |
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National (UK) Responses? |
Transport improved, hybrid cars, road tax Home improvements, ecotowns (BEDZED) Energy Mix improved, Kyoto targets Workplace improvements (Tesco) Stern Report- will cost US more to not do anything than cut emission now |
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What are the International responses? |
(1992) Rio Earth summit- realised needed to reduce CO2 (1997) Kyoto climate change summit- set goals however US pulled out as worried over economy and LEDCs not included (2009) UN Copenhagen- limit global warming to 2*c above pre induct temp LEDCs included |
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What are the successes of Kyoto?
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1990-2002 Germany =3/4 of Europe's reductions 1990-2000 UK have reduced emissions by 12.8% |
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Failures? |
2003= EEA reported that EU emissions increased Ireland Spain and Portugal have made no progress |
