Pressure grows on UK to ratify Paris climate change dealpublished at 14:58 British Summer Time 7 September 2016
Background to today's debate
Roger Harrabin
BBC environment analyst
Pressure is growing on the UK government to ratify the Paris climate change deal immediately.
A spokesman for the prime minister told the BBC the UK would ratify "as soon as possible", but did not suggest a date.
But Labour, the Lib Dems, SNP and the Greens say the UK has lost its long-term leadership on climate after the US and China jointly ratified the deal at the weekend.
They say there is no good reason for the UK to delay.