Assertion: positive feedback | /r/CapableOf | amplify global warming
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text: Among the positive feedbacks that will amplify global warming are the albedo effect (as ice surface diminishes, less energy is reflected by the white ice and more is absorbed by the exposed dark water), the release of vast stores of methane which is stored in the frozen tundra (methane is a stronger greenhouse gas), increased water vapor in the atmosphere due to increased evaporation (water vapor is also more powerful as a greenhouse gas than is CO2), a poleward shift of forested areas reducing the reflective powers of the surface, more fires which put more CO2 into the air, warming of the ocean reduces it's ability to absorb CO2.