Obama

EPA suspends oil giant from new contracts, as fallout from Deepwater Horizon disaster continues

Al Gore calls on President to use his mandate to push forward carbon pricing plan, as governors launch bi-partisan push to extend wind tax credit

President warns against the "destructive power of a warming planet" in victory speech

President makes play for green vote with decision to expedite planning decisions for seven giant clean energy projects

Confidential memo seen by Guardian calls for climate change sceptics to turn American public against solar and wind power

Work on southern section of controversial pipeline to get under way as green NGOs accuse president of betrayal

Election battlelines drawn as budget calls for end to oil subsidies and increase in clean energy spending

Speaker John Boehner warns Keystone conditions are likely to be attached to a new bill next month

State of the Union address demands greater support for green energy, at same time as touting expansion in US oil and gas

20 year moratorium to block all new mines in a one million acre area