[harasseddad]

But in a sense the models are irrelivent. The effects of climate change are already evident all around us: in terms of fauna the uk has effectively been towed about 150 miles south; we've had people rescued from roofs by helicopter from flooding; we came within 3inches two years ago from losing large chunks of several coastal towns from high tides;glaciers are retreating across the planet, threatening water supplies..

I could go on, but add to this a population that's going to increase by 50% in the next century, peak oil spelling the end of our current energy and economic system, and the collapse of eco-systems around the world - and the conclusion that we are facing catastrophe is inescapable.