Telegraph: Could the greatest casualty of the giant oil slick surging through the Gulf of Mexico turn out to be not Louisiana’s magnificent wildlife, or the biggest US fishery outside Alaska, but the last remaining chance of an international agreement to combat climate change? It seems counter-intuitive. Surely an economic and ecological disaster, caused by exploiting the fossil fuels that emit all that carbon dioxide, should make the world keener to tackle global warming by moving to cleaner sources …