US in the dock over climate change wrangling

The US has come under heavy fire for renewed refusals to commit itself to binding reductions in greenhouse gas emissions targets.

At a major UN summit on climate change held in Montreal, which is entering a crucial stage, Washington has blocked a Canadian proposal for a two-year round of multilateral talks on a global long-term strategy to curb climate change.

According to media reports, the Americans fear the talks are meant to lead them into binding commitments to curb gas emis...