BBC NEWS Science/Nature Sharp rise in CO2 levels recorded: "The research indicates that 2005 saw one of the largest increases on record - a rise of 2.6ppm.
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"Today we're over 380 ppm," he said. "That's higher than we've been for over a million years, possibly 30 million years. Mankind is changing the climate"."
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"Today we're over 380 ppm," he said. "That's higher than we've been for over a million years, possibly 30 million years. Mankind is changing the climate"."
