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WASHINGTON (AP) - A White House environmental adviser says the administration plan to combine tighter emission standards with higher fuel efficiency will protect consumer choice and provide cleaner vehicles.

Carol Browner, who headed the Environmental Protection Agency during the Clinton administration, called the accommodation with the industry on new rules "truly historic." She says the regulatory changes are "long overdue."

Browner is a key environmental and energy adviser to President Barack Obama. She said in an interview on CBS's "The Early Show" that consumers will save money on fuel and that the environment will be healthier for everybody.

Obama plans to propose the first-ever national emission limits for cars and trucks today along with a 35.5 miles per gallon requirement by 2016.

What's the catch? the average vehicle will cost about $1,300 more to make.

What do you think? Is the cost worth the reward?

Copyright 2009 by The Associated Press. All Rights Reserved.