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RT @ONU_fr: Le réchauffement du système climatique mondial est indiscutable, les experts nous disent. Mais ça veut dire quoi en fait? https…

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For clarification: The reduction in Arctic sea ice is the result of greenhouse gas emissions which began at the beginning of the industrial age (ca 1850) and has meanwhile led to a global average temp rise of ~1°C. But the dramatic loss in ice has taken place in the past 35 years