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British understanding with Poland key to climate agreement, says energy minister, but devil is in the detail
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Climate commissioner hails ‘strong signal’ ahead of global Paris summit but key aspects of deal left vague or voluntary
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A proposal offering small island states debt relief to pay for climate change adaptation merges legitimate and illegitimate debt, writes Karl Mathiesen
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UN climate chief Christiana Figueres urges delegates to work towards achieving a historic pact in Paris in 2015
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Deal would allow US to join other countries in cutting carbon dioxide emissions but avoid having to obtain Senate ratification
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New climate aid pledges to poor countries are an ‘absolute precondition’ for summit, says former premier Laurent Fabius – and US must go first
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Five ways Ban Ki-moon's summit has changed international climate politics forever