EPA

Agency wants greater power to force businesses to disclose information on the potentially hazardous chemicals they use

Large permitting producers to account for their greenhouse gas emissions

New EPA rules will require around 10,000 heavy polluters to report on their 2010 greenhouse gas emissions

Head of US watchdog says agency is poised to formally adopt controversial " endangerment finding"

Business group calls for public hearing on evidence for man-made climate change as it seeks to undermine proposed carbon legislation

Corn ethanol industry accuses EPA of influencing independent panel to boost support for controversial biofuel carbon life cycle regulations

Tough new air pollution standards will require ships in US waters to cut nitrogen oxide emissions by 80 per cent

Long-running battle between California and the EPA ends after the state is granted freedom to set its own car emission standards

New proposals designed to speed up process for assessing risks from new chemicals

New $10.5bn budget earmarks cash for central carbon credit registry