ENVIRONMENT

Obama Starts Climate Change Forum For Big Economies

President Barack Obama on Saturday invited 16 "major economies" including the European Union and the United Nations to take part in a forum on climate change to facilitate a U.N. pact on global warming.

Obama, a Democrat who has taken a more aggressive stance on climate change than his predecessor, Republican George W. Bush, invited the group to a preparatory session on April 27 and 28 in Washington.

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