Target and CVS are the latest retailers giving discount incentives to customers who bring in their own reusable bags instead of using the store's plastic bags.

President Barack Obama said Friday that opponents of his energy bill are disputing the evidence of global warming in a cynical ploy to undermine efforts to curb pollution and steer the nation to greener energy sources.

BP Capital Management Founder and Chairman T. Boone Pickens said he continues to expect oil prices will spike when the global economy picks up and spurs greater demand for oil.

The Mountaineer Power Plant in West Virginia has become the world’s first coal-fired power plant to capture some of the carbon dioxide it churns out and store it in the ground.

The first carbon neutral house on the East Coast, located in McLean, Va., is opening its doors on Oct. 10. The Green House, as it’s been named, uses approximately 70 to 80 percent less energy per square foot than a comparable new house.

Brazil, long proud of its push to develop renewable energy and wean itself off oil, has a bad case of fossil-fuel fever.

A typhoon pummeled China's eastern coast Sunday, toppling houses, flooding villages and forcing nearly a million people to flee to safety.

Exxon Mobil spacer said Tuesday it will make its first major investment in greenhouse-gas reducing biofuels in a $600 million partnership with biotech company Synthetic Genomics to develop transportation fuels from algae.

The oil market is over-supplied, said Joe Petrowski, the CEO of Gulf Oil on Thursday. As oil stocks approach a 29-year high, the fundamental supply-side of the market has never been more bearish, he said.

ExxonMobil said Monday it has completed an expansion of its natural gas processing capacity at a site in Colorado, allowing it to handle up to 200 million cubic feet of gas per day, double its current output.

OPEC is unlikely to cut output at its upcoming meeting, Saudi Arabia's oil minister said in comments published Tuesday, as indications mounted that the oil producing bloc would resist a temptation to tighten the taps despite wanting higher crude prices.

A moderate earthquake rocked the Los Angeles region late Sunday that was felt by many people, but there were no immediate reports of any major injuries or damage.

While Americans debate the use of so-called clean coal, China is mastering the application of the technology.

An online coloring book from 2003 that showed planes crashing into the World Trade Center has been removed from the Federal Emergency Management Agency's Web site.

Mexico's state-owned oil company PEMEX appears to have not been affected by the swine flu, though oil prices have plunged.