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Agreement reached on greenhouse gas curb
Vienna, Austria - Negotiators from 158 countries reached basic agreement Friday on rough targets aimed at getting some of the world's biggest polluters to reduce emissions of the greenhouse gases blamed for global warming.
The 2020 targets are not binding, but they were seen as an important signal that industrialized nations are serious about slashing the amount of carbon dioxide and other dangerous gases to try to avert the most catastrophic consequences of global warming.