Greenhouse gases hit new record - UN
By Ian Johnston, NBC News
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The body, an agency of the United Nations, said in a statement that there had been a 30 percent increase in the warming effect on the climate between 1990 and 2011.
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The three gases are closely linked to human activities such as fossil fuel use, deforestation and intensive agriculture.
WMO Secretary-General Michel Jarraud said in the statement that billions of tons of carbon dioxide emitted since the start of the industrial age in 1750 would “remain there for centuries, causing our planet to warm further and impacting on all aspects of life on earth.”
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Jarraud said about half of the carbon dioxide emitted as a result of human activity had been absorbed by carbon sinks such as forests and oceans.
“But this will not necessarily continue in the future,” he said. “We have already seen that the oceans are becoming more acidic as a result of the carbon dioxide uptake, with potential repercussions for the underwater food chain and coral reefs.”
“There are many additional interactions between greenhouse gases, Earth’s biosphere and oceans, and we need to boost our monitoring capability and scientific knowledge in order to better understand these,” he added.
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