The lack of concrete data on which facilities were emitting greenhouse gases and how much they were spewing into the atmosphere led to a major flaw in the European Union's cap-and-trade system: the over-allocation of pollution permits to industry. This mistake led to the collapse of the carbon market. Thanks to action taken by the Environmental Protection Agency this month, the United States will not make the same mistake. ...more

March 28, 2009

Re: "This Newspaper Is Fighting Back" (Views, Dec. 14): ...more

December 16, 2008

Carbon dioxide isn't the only greenhouse gas that worries climate scientists. Airborne levels of two other potent gases - one from ancient plants, the other from flat-panel screen technology - are on the rise, too. ...more

October 25, 2008

The United Nations Panel on Climate Change is calling for sacrifice on the part of the American people in order to fight global warming. Their solution is for us to eat no meat one night a week. They have estimated that meat production accounts for nearly a fifth of global greenhouse gas emissions. ...more

September 19, 2008

Oxygen, key to life on Earth today, began to appear on the planet millions of years earlier than scientists had thought, new research indicates. ...more

September 30, 2007