U.S. group sees worsening coastal flooding threat

WASHINGTON (Reuters) - Fast-melting ice from Greenland and Antarctica will lead to a much sharper rise in sea levels than previously estimated, touching off flooding that will radically alter U.S. East Coast cities from Miami to Baltimore, according to a new study.

Climate change will cause a rise of at least 1 meter (39 inches) in sea levels by the end of this century, according to a review of scientific data by Clean Air-Cool Planet, an environmental group that calls itself nonpartisan.