EPA

As defeat in Massachusetts robs Democrats of their filibuster-proof Senate majority, senator Murkowski plans amendment to stop EPA regulating carbon emissions

Row over US climate change legislation heats up as Republican Senator attempts to block EPA's right to regulate carbon emissions

EPA puts forward tough new air quality standards that would force local authorities to reduce smog levels

Four new chemical groups named as Chemicals of Concern, as EPA also announces new rules to ensure polluters pay to clean up their mess

Moderate Democrats and Republicans increasingly confident they can secure the 60 votes needed to pass cap-and-trade legislation

Landmark ruling strengthens president's ability to deliver climate change deals in both Washington and Copenhagen

Boost for Copenhagen as reports emerge that the US Environmental Protection Agency will confirm this evening that it has the authority to impose new carbon rules

Move comes only a week after China’s president Hu Jintao made a similar promise to reduce emissions

EPA to help Chinese counterparts improve mechanisms for reporting on national greenhouse gas emissions

New international team to tackle growing challenge of illegal e-waste exports