Recent research has raised concerns about the Amazon putting more CO2 and other greenhouse gases into the air than it can absorb, but new findings, published in the journal Nature, show a “first” among climate scientists and journalists.
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After years of warning and growing fear among scientists, “frightening” RESEARCH REVEALS revealed last week that climate change and thickening of the woods made part of the Amazon basin, an important “sink,” the source of the carbon dioxide that warms the planet.
Even if there is new research raised concerns about being put on Amazon even more CO2 and other greenhouse gases in the atmosphere than absorbed, the new findings, published in the journal Nature presented as a “first” among climate scientists and journalists.
From 2010 to 2018, researchers for the new study – led by Luciana Gatti of Brazil’s National Institute for Space Research – conducted “measurements of the vertical placement” of carbon dioxide and monoxide a few miles away. at the height of the tree canopy in four areas of Amazonia.
The researchers found that “Southern Amazonia, in particular, acts as a net source of carbon” and “total carbon emissions are higher in eastern Amazonia than in the west.” The former, they say, is “reduced by greater deforestation, warming, and moisture stress” than the latter in recent decades.
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According to The New York Times reports last week:
“In a fellow Nature article, Scott Denning, a professor in the atmospheric science department at Colorado State University, wrote that the paper“ atmospheric profiles show that the uncertain future is happening now. “
“In an email in response to questions, Dr. Denning praised the new study as the first real-scale measurement-from various altitudes over thousands of kilometers and remote sector-in the event, a growth beyond traditional resistance in forest areas. The results show “that warming and deforestation in eastern Amazonia reversed carbon sinking on a regional scale. and that the change actually reflects atmospheric CO2, “he wrote.”
Cats SAY The Guardian that “the first worst news is that forest fires produce about three times more CO2 that is absorbed by the forest. The second bad news is that areas where deforestation 30 % or more shows carbon emissions 10 times higher than where deforestation is less than 20%. ”
According to the newspaper – noting the role of emissions from intentional burning for beef and soybean production as well as in the world restraint addressed by Brazilian President Jair Bolsonaro for encouragement upsurge forest cover:
“Smaller trees mean less rain and higher temperatures, making it the hottest season for the rest of the forest,” he said: “We have a negative loop making the forest which is more easily consumed by uncontrolled fire. “
Most of the timber, cattle and soybeans from the Amazon are exported from Brazil. “We need a global agreement to save Amazon,” Gatti said. European countries were told they would block an EU trade deal with Brazil and other countries if Bolsonaro does not agree to do more to solve the Amazon collapse.
The study comes after a March analysis, published in the journal Frontiers in Forests and Global Change, considered not only CO2 but methane, nitrous oxide, black carbon, also biogenable organic compounds, aerosols, evapotranspiration and albedo.
Comparing that research to last week, Denning said that “they are complementary studies with different approaches that come to the same conclusion.”
– Greta Thunberg (@GretaThunberg) July 14, 2021
Researchers from the April study, which relied on satellite tracking, found that between 2010 and 2019, the Brazilian Amazon emitted 16.6 billion tons of carbon dioxide, while extracting only 13.9 billion tons – meaning that in over a decade, it has released almost 20%. more CO2 than it absorbs.
“We half expected it, but this is the first time we have numbers showing that the Brazilian Amazon has flipped, and is now a net emitter,” said co-author Jean-Pierre Wigneron, a scientists at the National Institute for Agronomic in France. Analysis, in time. “We don’t know when the change could be reversed.”
The France Media Agency reports that in a statement about the study, INRA said that “Brazil has seen a sharp decline in the application of environmental protection policies after the change of government in 2019,” meaning if in Bolsonaro SWORN as president.
“Imagine if we could stop the Amazon fire – it could be a carbon sink,” Gatti said last week, citing the negative impact of converting rainforest swaths to the end for agriculture. “But we’re doing something different – we’re accelerating climate change.”
Originally published on Common Dreams.