17 Apr '11, 9pm

Sugar cane ethanol cools climate when it replaces cattle pasture

Sugar cane ethanol cools climate when it replaces cattle pasture mongabay.com April 17, 2011 Converting cattle pasture and cropland in Brazil to sugar cane helps cool local climate reports research published in Nature Climate Change . Scientists with the Carnegie Institutions’s Department of Global Ecology at Stanford University and the University of Montana analyzed temperature, reflectivity, and evapotranspiration from satellite data across 733,000 square miles—an area larger than the state of Alaska. They found converting from natural cerrado grassland vegetation to crop/pasture on average triggered warming of 2.79 °F (1.55 °C), but that subsequent conversion to sugarcane, cooled the surrounding air by an average of 1.67 °F (0.93°C). "We found that shifting from natural vegetation to crops or pasture results in local warming because the plants give off less beneficial w...

Full article: http://news.mongabay.com/2011/0417-sugar_cane_ethanol_cli...

Tweets

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