The United Nations is turning up the heat to help keep the earth cool.
Secretary-General Ban Ki-moon raised the temperature in offices at U.N. headquarters this month by 5 degrees to cut down on carbon dioxide emissions, the leading cause of global warming. The program was such a success that the U.N. is going to continue it until September 15. A U.N. spokeswoman says the experiment aka "Cool U.N." saved the U.N. from emitting 2,000 metric tons of carbon dioxide, an amount equivalent to 710 round-trip trans-Atlantic flights.

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