California is set to unveil a new weapon in its fight against global climate change on Wednesday when it holds its first sale of carbon emissions permits - a landmark experiment that it hopes will

California, long the national leader in clean energy policy, is poised to double down on its investments in the sector, with billions in new subsidies set to flow in over the next few years.

US President Barack Obama on Wednesday vowed a new push for action on climate change, saying the United States had a duty to come together to curb emissions in the wake of megastorm Sandy.

For all their disputes, President Obama and Mitt Romney agree that the world is warming and that humans are at least partly to blame.

South Korea has doubled a target to reduce greenhouse gas emissions by local industrial and power sectors in 2013 to enhance competitiveness prior to a new cap-and-trade scheme starting in 2015, th

The European Union has yet to decide what procedural steps to take next in talks about a draft change to the bloc’s carbon law after some governments voiced uncertainty about the plan, an EU presid

California's top air regulator offered a stern defense of the state's forthcoming carbon cap-and-trade system, battling back against complaints from industry that it will cost jobs and drive up con

Ministers from Brazil, India, China and South Africa called for an extension of the Kyoto Protocol, the world's only treaty that forces countries to cut greenhouse gas emissions, which expires at t

The U.S. aviation industry urged President Barack Obama on Monday to file a U.N. action to stop the EU from forcing foreign aircraft to pay for their carbon emissions ahead of a U.N.

California's carbon market could be 29 percent short of offset credits in its 2013-2014 pilot phase if regulators do not expand their list of allowable project types, making it more expensive for c