Business group launches fresh lawsuit targeting the EPA's right to regulate carbon emissions
New emissions standards likely to be finalised next year after EPA completes draft rules
Watchdog provides fresh details on how it plans to operate new emission permitting regime
Top diplomat insists US will honour goal of cutting carbon emissions 17 per cent by 2020
Watchdog files official request calling for reinstatement of polluter pays tax to support cash-strapped Superfund clean-up programme
Economic analysis welcomed by green groups, but unlikely to win over Republican opponents
Resolution to strip the EPA of its right to regulate greenhouse gas emissions defeated by 53 votes to 47
D-day for Senate attempt to strip EPA of the power to regulate greenhouse gas emissions
Senate attempt to strip watchdog of its right to regulate carbon emissions could be in vain
Agency cranks up pressure on Senators to approve climate bill by confirming that new emission permitting rules will come into effect from the start of next year