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Why This Matters: Due to human impacts, in about 40% of the Amazon the rainfall is now at a level where the forest could exist in either state—rainforest or savannah. As swaths of the rainforest begin to wither, lose moisture, and become savannah, crucial water resources will be removed from the region permanently, further contributing to drought.
A Rapid Reckoning: Researchers say that once the conversion process from rainforest to savannah begins, it is very hard to reverse; now, experts fear that we don’t have time to reverse this process despite our best efforts.
Further studies have explained this rapid acceleration, finding that larger, more complex biomes fall faster than smaller ones.Researchers estimate that once the tipping point is reached, it could take less than 50 years for a biome the size of the Amazon to collapse completely. John Dearing, a professor in physical geography at the University of Southampton urges people not to be “taken in by the longevity of these systems just because they may have been around for thousands, if not millions, of years.” He said, “they will collapse much more rapidly than we think.”
Political Motivations: President Jair Bolsonaro of Brazil has promised to continue the development of the Amazon rainforest, ignoring critics and environmentalists who want to see the forest preserved. One critic, presidential candidate Joe Biden, recently threatened Brazil with “economic consequences” if it did not stop damaging the rainforest. Bolsonaro disregarded the statement as cowardly.
In the first 9 months of 2020, Amazon forest fires increased by 13% compared to last year. According to fire monitoring tools at NASA, the Amazon currently has 28,892 active fires spanning 9 different countries. Due to this damage, about 20% of the Amazon has become a net positive source of carbon, with healthy forest unable to absorb the carbon flowing freely into the atmosphere. Environmentalists emphasize that the forest is paying the price of climate change, Ane Alencar, science director for Brazil’s Amazon Environmental Research said of the current drought, “we are at the mercy of the rain.”
Why this Matters: The West has had seasons of drought throughout its history, but with climate change and a boom in population growth, an increase in water demand could make the West even drier as we confront the reality of climate change.
by Amy Lupica, ODP Staff Writer On Monday, Wisconsin Governor Tony Evers signed an executive order declaring a state of emergency due to rampant wildfires consuming 1,400 acres of land in just the first three months of 2021. As historic (and maybe permanent) droughts move further east, Wisconsin finds itself in a perilous situation. Nearly the entire state is at a […]
by Larry Selzer, President and CEO, The Conservation Fund Climate change threatens every life support system we rely on—food, water, and biodiversity. The things that keep us alive are at risk, which means we are at risk. We recognize that climate change is the most pressing global challenge we have ever faced, and we must […]
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