New research challenges State Department projections, increasing pressure on White House to reject controversial development
First Nation groups vow to continue fight against controversial tar sands pipeline
Protestors strap themselves to White House fence as President continues to mull future of controversial pipeline
New information centres to help farmers and rural communities protect themselves against escalating climate risks
EU Commission proposals to end Fuel Quality Directive could result in a rise in emissions equivalent to putting six million more cars on the roads
Frustration at proposals to remove sustainable transport goals creates unlikely alliance between biofuels sector and green groups
Tar sands to drive rapid increase in emissions over the coming decades, official projections show
Approval would encourage investment into risky high-cost, high-carbon projects that could end up stranded
Major new report aims to give President Obama the evidence he needs to reject controversial pipeline
President rejects Republican claims that controversial project would create tens of thousands of jobs