Barack Obama

Paper outlines more than 50 actions and commitments designed to avoid 300 million tonnes of CO2 emissions, as administration sets out climate negotiating stall

A week before major UN talks on climate change, EPA extends comment period for rule to cut carbon pollution from plants

New research challenges State Department projections, increasing pressure on White House to reject controversial development

President beefs up climate strategy once again with new moves to tackle methane emissions, enhance resilience, and bolster economic case for action

President Obama poised to announce fresh climate policies, as California and Mexico seek to establish clean tech hub

President says members of congress are feigning ignorance of science because they fear backlash from 'fringe elements'

New report warns that climate impacts pose grave threat to global tourism industry

As President announces new $1bn to improve climate resilience, he likens those who reject climate science to people who believe the moon is "made of cheese"

Clinton backs Obama's emissions reduction plan and warns that world faces "consequential challenges" from climate change and resource depletion

US President warns two degree target will be unachievable without switch to greener energy sources