WASHINGTON, D.C. -- President Barack Obama puts to rest today a long-running feud between the auto industry, U.S. Environmental Protection Agency and more than a dozen states over the right to regulate vehicle tailpipe emissions.

MERCED, Calif. -- A new study suggests converting biomass to electricity rather than ethanol is more efficient in terms of “miles per acre” and greenhouse gas emissions.

WASHINGTON, D.C. -- FedEx wants a third of its jet fuel to come from biofuels by 2030, the company’s chief executive said Wednesday in a speech delivered during a U.S. Chamber of Commerce event.

GENEVA, -- International aviation trade groups today called for the widespread adoption of Performance-based Navigation (PBN) to trim trip length, fuel and greenhouse gas emissions.

NEW YORK, N.Y. -- Just 10 percent of businesses are managing the greenhouse gas emissions in their supply chains, with more than a third having no clue about the size of their supply chain carbon footprint, according to new survey.

OAKLAND, Calif. -- Air France/KLM, British Airways, Cathay Pacific, Virgina Atlantic and airport operator BAA have created the Aviation Global Deal (AGD) Group to lobby for a sectoral approach to climate change that reduces emissions while satisfying its own set of key principles.

While the aviation industry in its current guise may never be compatible with a low-carbon economy, airports are trying to do their bit to cut carbon footprints.

Last year, air travel and transport emerged as major contributors to global warming. Airlines and shipping companies are exploring a range of potential solutions in the face of legislation underway in Europe. Is it even possible for planes to be friendly to the skies?

PLEASANTON, -- The retailer's fleet uses more than 1,000 big rigs throughout its operations. The move will help Safeway avoid about 75 million pounds of carbon dioxide emissions each year.

Against a background of significant growth in air travel and aviation markets, and as a result of increasing awareness on the part of governments and the public with regard to climate change and its possible consequences, pressure is being placed on the aviation industry, and airlines in particular, to reduce aviation carbon emissions, writes industry consultant David Hodgkinson.

ABBOTT PARK, -- Health care giant Abbott is the first company to sign on to PHH GreenFleet, designed to improve vehicle efficiency and reduce fuel consumption among commercial fleets.

RICHLAND, -- If all the cars and light trucks in the nation switched from oil to electrons, idle capacity in the existing electric power system could generate most of the electricity consumed by plug-in hybrid electric vehicles.

SILVER SPRING, -- A new program to offset shipping-related carbon-dioxide emissions, Carbonfree Shipping, has been launched by Carbonfund.org.