State Department gives President some breathing space with confirmation final decision on whether to approve tar sands pipeline will not be needed until April
President Obama will face an early test of his renewed commitment to action on climate change, after Nebraska Governor Dave Heineman approved controversial plans for the Keystone XL tar sands pipeline....
New initiative aims to help cut costs and emissions for retailers in central London
Sadiq Khan and Anne Hidalgo announce plans to develop vehicle ratings based on their real world emissions
Theresa May today issued the letter to the EU triggering the start of the formal exit process - here's all the latest reaction
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