Dumping the world’s only legal agreement on fighting climate change would be gambling with the future of the planet and the world’s poorest people, four major campaign groups are warning.

Church leaders will join mass protests in London and Glasgow this weekend, which aim to put pressure on governments on climate change at the impending UN talks in Copenhagen.

Baptist, Methodist and URC leaders have called for government pressure on the world’s rich countries to reach a binding agreement at next week’s climate change conference in Copenhagen.

MPs are being urged to sign up to a parliamentary early day motion calling on the UK government to urge the European Union to take a much stronger stand in tackling climate change.