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Climate scientists urge protection of coastal ecosystems (2:34) 

Oct. 10 - Climate scientists in the United States are calling for greater protection of coastal ecosystems following a study that shows them to be major absorbers of CO2. They say the destruction of systems like mangrove swamps, may release more than one billion tonnes of carbon into atmosphere every year and contributes significantly to climate change. Ben Gruber reports. ( Transcript )

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