European Commission calls for ambitious carbon-trading agreements ahead of UN Copenhagen conference
End to free distribution policy by retailers leads to plastic bag use falling by two-thirds in a year
New best practice guide to provide template on how to accurately report carbon data
As US climate bill clears latest hurdle, Steven Chu warns there will have to be a compromise on emission targets if further delays to legislation are to be avoided
Green groups furious over administration's failure to block controversial mountaintop mining projects
An industry panel is blocking moves that would make it easier for wind projects to connect to the Grid
US utility attempts to draw line under decision to leave trade group that opposed carbon legislation
President sets out tough new standards designed to cut annual car emissions by 900 metric tons
Joint agreement between US and Canada would help tackle issue, say experts
Obama could seal accord on cutting emissions by autumn