Spectre of devastation triggers fierce battle for Amazonʼs future
When Emmanuel Macron tweeted that “our house is on fire” after widespread blazes in the Amazon this year, he sparked global outrage over the damage to the worldʼs largest rainforest.
Yet the French presidentʼs focus on the fires overlooked the complex forces causing change in the Amazon. For months before the incident, scientists had been warning about surging de-forestation and the potentially catastrophic consequences.
While the smog-producing fires set by cattle ranchers as they cleared land seized the publicʼs attention, they are just a symptom of the bigger problem.
Deforestation, experts say, has the potential to upend communities and economies worldwide.
Formed more than 30m years ago and covering almost 7m sq km, the Amazon basin acts as one of the few remaining natural bulwarks against climate change.
It does this primarily by working as an enormous sink for carbon emissions: the forest stores almost 100bn tonnes of carbon — about a decadeʼs worth of global emissions.
Each year it sucks up as much as a quarter of all the carbon emissions absorbed by the worldʼs trees. It also operates as a huge water-recycling system that underpins the weather patterns that support agriculture and industry across South America and beyond.
Scientists estimate that every day the forest releases 22bn tonnes of water into the atmosphere, a process known as evapotranspiration. This then falls across the continent as rain, which not only provides water for agriculture and cities but also helps reinforce the glaciers that straddle the Andes mountain range.
In addition, the Amazon offers tremendous scientific and economic opportunities. The region is home to a tenth of the worldʼs biodiversity, which biotechnologists believe could usher in a generation of medical, chemical and industrial products using genomic sequencing and synthetic biology.
The economy of the Amazon Basin, based mostly on extraction, is estimated to be worth $250bn, but scientists predict a new bioeconomy could generate trillions and be sustainable, too.
“The promise of synthetic biology is to produce solutions that we need for [the] future of healthcare, of water, of food,” says Juan Carlos CastillaRubio, a biochemical engineer and a member of the World Economic Forumʼs Global Future Council on the Bioeconomy.
Yet progress hangs in the balance. After years of success in curbing deforestation, destruction has returned to the region. Sixty per cent of the rainforest is in Brazil, and since the election last year of President Jair Bolsonaro, who favours opening the rainforest to development, tree clearance reached an 11-year high, in the 12 months to July 2019, according to the countryʼs space agency. Official data say the rate of deforestation in August was 220 per cent higher than the same month last year. By some estimates, a football field worth of trees is razed each minute.
“The Amazon is at great risk of destruction and with it the wellbeing of our generation and generations to come,” wrote more than 40 Latin American climatologists in September in a paper presented at a conference in the Vatican.
Deforestation to date affects nearly 17 per cent of the total Amazon rainforest, they said. Scientists believe that once a threshold of around 25 per cent deforestation is crossed, the forest will be unable to maintain its water recycling ecosystem, resulting in a rapid die-off.
The scale of the devastation, mostly within a swath of land from the state of Acre in the west to Maranhão in the east, is evident thanks to satellite technology.
The task for environmental authorities is to trace the groups responsible for the crimes.
Joel Bogo, a federal prosecutor in Acre, says deforestation is being driven by business and criminal interests chasing a quick profit by turning protected forests into cattle ranches or prospective gold mines.
Where once stood pristine forest on the banks of the Amazonʼs maze of waterways, cows now graze. “The cattle trade is already consolidated here,” says one official from Amazonas, a vast state bordering Peru, Colombia and Venezuela.
Written by Bryan Harris, Steven Bernard and Anna Gross
