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Is Global Climate Change Affecting Hurricanes?

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Uploaded by on Jan 30, 2008

After the disastrous 2005 hurricane season, which brought Katrina, Rita, Wilma and more, the link between global climate change, warming sea, surface temperature and hurricanes was front page news. Does climate change affect hurricanes? As Prof. Kerry Emanuel explains in the second in his series of lectures, the answer is yes...but the answer is also complex given the many factors involved.

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  • Yes, i do think that global climate change is definitely affecting hurricanes.

  • says harvard...

  • Harvard says that as green plants sink CO2, the free CO2 in the air has not changed for 200 years! Repeat - no change in CO2

  • (...) as for CO2 varying with climate, that's correct, but only half the story. The climate changes during the ice age cycles were not initiated by CO2, but CO2 (and other GHGs like methane) greatly amplified their effect.

  • @JonThm CO2 is a very important GHG, even in those small amounts. Water vapor is a strong GHG, but it doesn't remain in the atmosphere very long, and there are large quantities of it, so we don't add very much to its effect. CO2 has a long residence time and is not close to saturation. The amount of CO2 varied between about 200 ppm for the ice ages to about 280 ppm during interglacials. Today we're nearing 400. It was higher in the deep past, but conditions were different then (cont.).

  • why can't i post on here

  • Cherry-picker

  • Are you In America?

  • There was 2 pm CO2 before the industrial revolution, there is only 3.7 ppm today. In the last ice age there was 4 ppm in the air, as there were fewer plants to take it in: It follows the cliamte, it does not make the weather.

  • CO2 is at 0.0000037%, adn has no effect - it follows the weather, as plant life waxes and wanes. The major GW gas is water vapor, produced by the seas, and nothing to do with man. You are 16 great, you can teach your teachers stuff!

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