Leading corporations including Microsoft and Facebook are among the first round of companies to enlist in the 2011 Climate Corps. The Environmental Defense Fund’s Climate Corp program places top MBA students in companies to help the businesses come up with energy efficient plans that cut costs and reduce greenhouse gas emissions. The program is heading into its fourth year with thirty companies signing on for the summer of 2011. Since it started, Climate Corps has helped 66 major firms save a total of $439 million dollars and reduce greenhouse gas emissions by 557,000 metric tons, that’s the equivalent of taking 86,000 SUV’s off the road. Climate Corps fellows that are placed with companies are specially trained in energy efficient practices and strategies. Some of this year’s applicants to the Climate Corps program are enrolled in top MBA programs at schools including Columbia, Harvard and Northwestern University. Companies enrolling for 2011 will join current participants including McDonald’s and AT&T.