The U.S. Environmental Protection Agency said on Thursday it has proposed changes to a rule that aims to cut smog-forming chemicals from power plants in 27 states.

The United States will enforce a Bush-era standard on smog pollution after the White House, under pressure from Republicans, killed a tougher plan, the country's top environmental regulator said on

Ten U.S.

Ten U.S.

Thousands of opponents of a $7 billion pipeline that would boost U.S.


The Environmental Protection Agency said on Tuesday it would again delay issuing a final limit on smog pollution opposed by manufacturers and many Republican lawmakers until the Obama administratio

Willie Soon, a U.S.

Global warming will likely open up coastal areas in the Arctic to development but close vast regions of the northern interior to forestry and mining by mid-century as ice and frozen soil under temporary winter roads melt, researchers said.

Higher temperatures have already led to lower summer sea ice levels in the Arctic and the melting has the potential to increase access for fishermen, tourist

The Senate blocked a move by Republicans to speed domestic offshore oil and natural gas drilling on Wednesday, a fresh sign of congressional gridlock on energy issues even as drivers endure gasoline prices near $4 a gallon.

Republicans only got 42 of the 60 votes needed to consider a bill, known as the Offshore Production and Safety Act, that would have directed the Interior Department to condu