Not so long ago, renewable energy pioneer Dale Vince (who we interviewed here) challenged Gordon Brown, the UK’s new prime minister, to adopt a target of zero carbon emissions by 2050.

As the summer swelters on, skyscrapers and apartments around the city will crank up air conditioners and push the city's power grid to the limit — but some have found a cool alternative.

Less water flows down China's two biggest rivers now than 40 years ago because global warming is drying up the wetlands that feed them, a state news agency reported Monday, citing Chinese scientists.

Influential senators from both parties, backed by unions and some large electrical utilities, will unveil a new global warming proposal on Wednesday that could form the basis of a climate change compromise that has so far eluded Congress.

HOW much carbon dioxide do you emit when you fly? The simple answer is that there is no simple answer. Various airlines and organisations have carbon calculators, but they often give different results.

More than 150 companies including Airbus, Coca-Cola and IKEA pledged on Friday to reduce the carbon burden of their operations in a voluntary pact urging governments to do more to confront climate change. Drugmakers Novartis and Pfizer, mining giants Anglo American and Rio Tinto, and the luxury goods specialist LVMH were among the 153 firms who committed themselves to greater energy efficiency.

New Jersey became on Friday the first U.S. state to mandate sharp greenhouse gas reductions by 2050 to help fight climate change. The law, signed by Gov. Jon Corzine, a Democrat, makes New Jersey the latest state to bypass the Bush administration by setting mandatory regulations to fight emissions of gases that scientists link to global warming.

Carbon offsetting schemes are all well and good, but do little to change the way people live day-to-day, argues Stefaan Simons. In this week's Green Room, he says instead of wasting money on short-term solutions, attention should be focused on developments that can really deliver a low carbon future.

$2,500 models could attract millions of buyers, but add to carbon emissions. It may be an Indian consumer's dream — cheap cars for $2,500-$3,000 within reach of millions of a swelling middle class. But it could also prove to be a traffic and environmental disaster.

Global warming will melt most Andean glaciers in the next 30 years, scientists say, threatening the livelihood of millions of people who depend on them for drinking water, farming and power generation.