More than 100 MPs have so far signed an early day motion calling on the UK government to urge the EU to take a stronger stand in tackling climate change.
With less than a month to go to the crucial UN climate change summit in Copenhagen, the motion says industrialised countries bear the greatest responsibility for global warming.
It calls on EU governments to commit to 40 per cent cuts in carbon emissions by 2020. The present target is 20 per cent, rising to 30 per cent if a global deal is reached at Copenhagen.