The Stern Report
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This cement factory in Hyderabad, Pakistan, has been blamed for the high incidence of lung disease in the region (epa) - The Stern report says the goal of stabilizing greenhouse gases at 450 ppm, necessary to avoid the worst effects of global warming, is already "almost out of reach."
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Danish Economy Minister Bendt Bendtsen (right) unveils a model of a cutting-edge wave-energy generator in August (epa) - The Stern report urges greater investment in low-carbon technologies. The global power sector will have to be at least 60 percent decarbonized by 2050 to stabilize greenhouse gases in the atmosphere.
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Extreme weather brought snow to Victoria, Australia, in August, closing roads and schools (epa) - According to the Stern report, the costs of extreme weather globally could be 0.5 to 1 percent of GDP by 2050.
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A cement factory near Changshu, China (epa) - The Stern report calculates that even if Britain were to shut down all its power stations tomorrow, the reduction in global emissions would be wiped out in just a year by increased emissions from China.
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A polar bear suns himself in the Barents Sea region (epa) - Disappearing glaciers will reduce the supply of fresh water to more than 1 billion people around the world, the report says. Melting ice caps will raise sea levels enough to displace 200 million people.
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A boy grazes cattle at a dump in Dar es Salaam in August (epa) - The Stern report notes that the world's poorest countries will feel the effects of global warming first and most severely, and will have the fewest options for coping with them.