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et-tu-amazonian-forrest?

Planes Sampling Air Above the Amazon Find the Rainforest is Releasing More Carbon Than it Stores - Inside Climate News [insideclimatenews.org]:

Over the last several years researchers have said that the Amazon is on the verge of transforming from a crucial storehouse for heat-trapping gasses to a source of them, a dangerous shift that could destabilize the atmosphere of the planet.

Now, after years of painstaking and inventive research, they have definitively measured that shift.

In a study published [nature.com] Wednesday in Nature, a team of researchers led by scientists from the Brazilian National Institute for Space Research, reported results from measuring carbon concentrations in columns of air above the Amazon. They found that the massive continental-size swath of tropical forest is releasing more carbon dioxide than it accumulates or stores, thanks to deforestation and fires.

“There is no doubt that the Amazon is a source,” said Luciana Gatti, the lead author of the study.

Over the last several years researchers have said that the Amazon is on the verge of transforming from a crucial storehouse for heat-trapping gasses to a source of them, a dangerous shift that could destabilize the atmosphere of the planet.

Now, after years of painstaking and inventive research, they have definitively measured that shift.

In a study published [nature.com] Wednesday in Nature, a team of researchers led by scientists from the Brazilian National Institute for Space Research, reported results from measuring carbon concentrations in columns of air above the Amazon. They found that the massive continental-size swath of tropical forest is releasing more carbon dioxide than it accumulates or stores, thanks to deforestation and fires.

“There is no doubt that the Amazon is a source,” said Luciana Gatti, the lead author of the study.

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