Global warming is accelerating three times more quickly than feared, a series of startling, authoritative studies has revealed. They have found that emissions of carbon dioxide have been rising at thrice the rate in the 1990s. The Arctic ice cap is melting three times as fast – and the seas are rising twice as rapidly – as had been predicted. News of the studies – which are bound to lead to calls for even tougher anti-pollution measures than have yet been contemplated – comes as the leaders of the world’s most powerful nations prepare for the most crucial meeting yet on tackling climate change. The issue will be top of the agenda of the G8 summit which opens in the German Baltic resort of Heiligendamm on Wednesday, placing unprecedented pressure on President George Bush finally to agree to international measures. Tony Blair flies to Berlin today to prepare for the summit with its host, Angela Merkel, the German chancellor. They will discuss how to tackle President Bush, who last week called for action to deal with climate change, which his critics suggested was instead a way of delaying international agreements. Yesterday, there were violent clashes […]