Of all the questions about climate policy, one of the biggest is whether a cap-and-trade system for greenhouse gases will even work. The only real-world example we have is the E.U.'s Emissions Trading System. But on closer inspection, the ETS seems to be working pretty well.

China's top climate change official on Friday welcomed a U.S. climate change bill but said Washington needed to take stronger action to ensure success at year-end talks to settle a global framework on warming.

Member states of the International Renewable Energy Agency (IRENA) voted to locate their headquarters in the United Arab Emirates, Egypt's state news agency MENA said on Monday.

President Barack Obama's administration on Monday laid out new efficiency standards for lighting used in homes and businesses, hastening measures to help reduce greenhouse gas emissions, an official said.

America's climate-change bill is a bundle of compromises.

As the fight over climate and energy legislation moves to the Senate, the political climate is heating up for New Mexico Democratic Sen. Jeff Bingaman.

Hailing the House, President Barack Obama put pressure on senators Saturday to follow its lead and pass legislation to limit greenhouse gas emissions, helping usher the U.S. into a new age of energy efficiency.

Democrats narrowly passed historic climate and energy legislation Friday evening that would transform the country's economy and industrial landscape.

The following is a transcript, provided by the White House, of an interview with President Obama, Energy Secretary Steven Chu, and Carol M. Browner, the White House coordinator of energy and climate policy, conducted by a group of reporters on Sunday.

Tessera Solar and CPS Energy have signed a 20-year power purchase agreement (PPA) yesterday to develop a 27-megawatt solar project in West Texas using the SunCatcher power system manufactured by Tessera Solar's sister company, Stirling Energy Systems.

Australian Prime Minister Kevin Rudd on Sunday hailed as an example to Australia the U.S. House of Representatives passage of a bill to reduce greenhouse gas emissions in the United States.

Norway's government proposed a new law on Friday to develop sea-based wind power as part of a plan to diversify from offshore oil and gas toward renewable energy.

The prime minister is to pledge U.K. leadership in the international battle against climate change.

Ethiopian Prime Minister Meles Zenawi has demanded that the rich world compensate Africa for global warming and said pollution in the northern hemisphere may have caused his country's ruinous 1980s famines.

Technology to capture carbon emissions from coal-fired power plants and store them underground will be ready by 2015 and could be in wide use in the United States by 2020, according to the top executive at American Electric Power Co Inc.

On May 26, the Copenhagen Climate Council delivered The Copenhagen Call to Danish PM Lars Løkke Rasmussen and UNFCCC chief Yvo de Boer at the close of the World Business Summit on Climate Change. Today, the Council released Shaping the Sustainable Economy, the Summit summary report.

The United States has been resisting European calls for industrialized nations to target an upper limit for global warming of 2 degrees Celsius (3.6 Fahrenheit), according to a draft summit text.

President Barack Obama on Tuesday urged Congress to pass "historic legislation" to fight global warming, prompting his fellow Democrats in the House of Representatives to aim for a vote on Friday on the bill to reduce industrial emissions of carbon dioxide.

The Sears Tower, that bronze-black monument that forms the 110-story peak of the skyline here and stands as the tallest office building in the Western Hemisphere, will soon have another unique feature: wind turbines sprouting from its recessed rooftops high in the sky.

House Democratic leaders are furiously lobbying their members and moderate Republicans to support a landmark energy bill in the face of resistance from some conservative members of their own party, and staunch opposition from the GOP.