Amazon Basin Becoming Carbon Emitter – Study

The Amazon Basin, traditionally considered a bulwark against global warming, may be becoming a net contributor of carbon dioxide (CO2) as a result of human deforestation, researchers said in a paper recently published in the journal Nature, reports Agence France Presse. Over 50 years, the population has risen from six million to 25 million, triggering massive land clearance for logging and agriculture, they said. The Amazon’s carbon budget — the amount of CO2 that it releases into the atmosphere or takes from it — is changing, although it is hard to estimate accurately said scientists, led by Eric Davidson of the Woods Hole Research Center in Massachusetts. Mature forests such as the Amazon are big factors in the global-warming equation. Their trees suck up CO2 from the atmosphere through the natural process of photosynthesis. But when they rot or are burned, or the forest land is ploughed up, the carbon is returned to the air, adding to the greenhouse effect. Furthermore, further carbon loss  could occur if drought increases with climate change, and even now “Where deforestation is widespread, the dry season is lengthening.”

Source

Amazon Basin may be shifting to carbon emitter. The Amazon Basin, traditionally considered a bulwark against global warming, may be becoming a net contributor of carbon dioxide (CO2) as a result of deforestation, scientists led by Eric Davidson of the Woods Hole Research Center said. Agence France-Presse

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About melharte

Mel (Mary Ellen) Harte is a biologist (PhD) and climate change educator. She co-authored the free online book, COOL THE EARTH, SAVE THE ECONOMY, available at www.CoolTheEarth.US, and writes the CLIMATE CHANGE THIS WEEK column at the HuffingtonPost. Living summers in the alpine Rockies, she is on the frontlines of watching what climate change can do. Her diagnostic digital photographs of wildflowers have appeared in numerous publications.
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