New rules to help accelerate the flow of cash for transit projects designed to curb carbon emissions
Group representing $13 trillion worth of assets urges leaders to accelerate the rollout of low carbon policies
Billionaire promises to get "more engaged" with efforts to tackle climate change
But "it could come later" says candidate for future EU climate commissioner role
Obama administration to work closely on formal details
Domestic producers of corn-based ethanol warn new sustainability requirements will price them out of the market
Miliband promises emission reductions achieved as a result of the recession will not be used to help meet future carbon budgets
Government official reveals plans to impose energy efficiency targets on large firms from March
Government report warns that economic recovery will result in increased carbon emissions, making it tougher for administration to hit 2020 target
Row over US climate change legislation heats up as Republican Senator attempts to block EPA's right to regulate carbon emissions