The IEA's chief economist Fatih Birol says the unsayable

Fatih Birol, chief economist at the International Energy Agency, says it's virtually impossible for us to meet climate change targets with current policies.

The BBC's environmental analyst Roger Harrabin reported on this morning's Today programme (3 mins in) that Dr Birol said it would take "a doubling of the current effort and then another doubling again". Harrabin remarked that Dr Birol "had said the unsayable".

Even BP agrees.