Obama

EPA sets out finalised rules to cut emissions of methane as part of Obama's Climate Action Plan

Barack Obama's climate diplomacy drive continues with new partnership to scale up renewables, tackle aviation emissions, and phase out potent warming gases

Cash represents first payment following US $3bn pledge to fund climate projects in developing nations

Surprise ruling forces EPA to halt work on landmark regulations to curb emissions from US power sector

White House aims to increase US investment in clean-energy research to $13bn, but budget needs approval from Republican-controlled Congress

Senators are scrambling to rescue the wide-ranging energy bill, as President Obama unveils new fuel tax and green transportation plan

Efforts to delay enforcement of Obama's flagship emission reduction plan blocked by federal appeals court as legal challenge rumbles on

Administration backs up State of the Union commitment to climate action with fresh proposals to limit fossil fuel development

President praises economic impact of clean energy rollout and promises renewed reform of oil and coal markets in his last State of the Union address

TransCanada has launched a lawsuit for $15bn in lost investment, claiming Obama overstepped Constitutional authority in rejecting the controversial pipeline