Independent: Advocates of action to combat climate change have a new champion, though it is unlikely they will be inviting him to campaign on their behalf any time soon. He is Osama bin Laden, the leader of al-Qai’da, the terrorist group that has specialised in a brand of global destruction all of its own. Bin Laden is heard focusing on the issue of greenhouse emissions in a new audio tape that surfaced yesterday on several Islamic militant websites. “The number of victims caused by climate change …