President of COP20, Peruvian minister of environment Manuel Pulgar-Vidal (right) and executive secretary of UN Framework Convention on Climate Change Christiana Figueres applaud after the approval of  document dubbed The Lima Call for Climate Action. Photograph: EPA

The UN’s 20th climate-change conference in Lima – Cop20 – could easily have fallen apart, and it looked as if it would on Saturday. But the irreconcil(...)

The Peruvian environment minister Manuel Pulgar-Vidal delivering a speech during the opening of the  20th United Nations Climate Change Conference at Lima, Peru, this month. Photograph: Paolo Aguilar

Frantic negotiations to salvage the UN’s 20th climate conference are running right up to the wire after an earnest plea to negotiators by its presi(...)

Marcos Avilques and Marcio Kokoj of the Co-ordination of the Indigenous Organisations of the Brazilian Amazon address a news conference as part of the UN climate change conference in Lima. Photograph: Mariana Bazo/Reuters

Climate change adaptation costs for developing countries are likely to be double or even treble current estimates of $70 billion-$100 billion (€57 bil(...)

 UN climate conference in Lima told this year is on track to be the hottest year on record, or at least one of the top three. Photograph: Mariana Bazo/Reuters

This year is on track to be the hottest year on record, or at least one of the top three, according to a provisional statement released at the UN c(...)

Environmental advocates participate in the “People’s Walk for Climate Justice”, a walkathon against climate change in the  Philippines. The latest round of UN climate talks are set to “grind to a halt” unless its joint co-chairs find a way of reconciling serious differences between rich and poor countries. Photograph: Romeo Ranoco/Reuters

The latest round of UN climate talks “will grind to a halt” unless its joint co-chairs find a way of reconciling serious differences between rich and (...)

  United Nations Convention on Climate Change executive secretary Christiana Figueres said she was encouraged by the progress made over the past two weeks. Photograph: Karim Jaafar/AFP/Getty Images

The world is still on course for an international agreement to tackle global warming in 2015 despite days of bickering in Bonn over how decisions are (...)