Giorgio Fidenato has made a habit of carrying a raw ear of yellow corn and taking a hearty bite whenever a camera is in sight.

It's a provocation.

Gas exploded at a Chinese coal mine Tuesday, killing 10 people and trapping seven just hours after lethal gas leaked into another coal mine and killed nine, state media said.

The gas explosion happened around 9:30 a.m. Tuesday in the southern province of Guizhou, the state-run Xinhua News Agency reported.

The BP spill is by far the world

Floods driven by record-breaking rainfall have killed at least 800 people and destroyed thousands of homes over the past week, officials said Saturday, in the latest disaster to test Pakistan

Economists have long seen a carbon tax as a good idea because of its simplicity: Polluters pay at a level that is set by decree.

It will cost between $500 billion and $600 billion every year for the next 10 years to allow developing nations to grow using renewable energy resources, instead of relying on dirty fuels that worsen global warming, according to a United Nations report released Tuesday.

District heating, a technology as old as the Romans, is gaining ground in Britain as the government searches for ways to cut the emissions of global warming gases.

At summit meetings in Washington and London, the G-20 leaders highlighted two threats to economic recovery: trade-contracting protectionist measures, and uncoordinated reforms that could impede global investment. They pledged to reject protectionism, resist measures that constrain capital flows, and strive for consistency and cooperation in regulatory reform.

The talk in Washington is that Senate Democrats are preparing to push through health care reforms using parliamentary procedures that will allow a simple majority to prevail in their chamber, as it does in the House, instead of the 60 votes needed to overcome the filibuster that Senate Republicans are sure to mount.

Doctors doing a needle biopsy to analyze tissue for cancer may one day add a second step to the procedure: depositing a tiny device at the site to report on growth of a tumor