Having failed to achieve consensus on climate change policies in Copenhagen in 2009, the UN is set to try again, writes Michael Jacobs

The white-shelled roof of the Sydney Opera House fell dark today, one of the first landmarks to turn out the lights in an hour-long gesture to be repeated by millions of people around the world who are calling for a binding pact to cut greenhouse gas emissions.

Vast sums promised by rich nations including the UK to help developing countries tackle climate change cannot be accounted for, according to a study revealed today.

OH how our smitten Taoiseach swooned in the moonlight – the Ban Ki-moon light that is.