Policy

Government definition on what constitutes a zero-carbon home expected this summer

Deepwater Horizon disaster costs for clean up and damages had been previously estimated at closer to $5bn

"This disaster is going to shape how we think about the environment and energy for many years to come"

Leading diplomats slam "one-sided" and "imbalanced" draft negotiating text

Executives to meet president Obama as calls increase for company to suspend dividend and set up ring-fenced oil spill fund

Meeting in South Korea approves proposal for Intergovernmental Science Policy Platform on Biodiversity and Ecosystem Services

Letter calls on energy and climate change secretary to honour Lib Dem manifesto pledge to push for a more ambitious climate deal

Surveys on both sides of Atlantic reveal support for efforts to curb carbon emissions remains more robust than expected

Away from the media spotlight, climate negotiators in Bonn this week have delivered real progress towards an international deal

Resolution to strip the EPA of its right to regulate greenhouse gas emissions defeated by 53 votes to 47