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Smoke billows from the Amazon Rainforest. Photo: Dado Galdieri / AP

This year is on track to be the worst on record for forest fires in the Amazon, per the Brazilian government. The fires are doing the most damage in the areas of the forest already hit by human-caused forest degradation, Mongabay reports.

  • Distinct from deforestation, forest degradation is the process of felling just the valuable trees in a forest and leaving behind flammable tree limbs and debris, creating a ground zero for wildfires.
  • Why it matters: Climate change, deforestation and forest degradation are causing mega-fires that are devastating large swathes of the Amazon rainforest. Carbon emissions from the fires have the capacity to impact climate around the world.

The details:

  • The Amazon is currently experiencing a prolonged drought — lasting up to four months in some parts — which is contributing to the spread of the fires. And "the dry seasons in Brazil seem to be becoming drier and more frequent," scientist Luiz Aragão told Mongabay.
  • As of October 5, 208,278 hot spots have been seen in the region using thermal sensing. Fire brigades lack the manpower and resources to control them.
  • Forest degradation has transformed the Amazon from a carbon sink to a carbon source. Meanwhile, the uptick of carbon emissions around the world are contributing to bigger fires globally. The concurrent trends comprise a recipe for more mega-fires, scientists say.
  • "If Brazil is to have a chance at controlling the intensity of fires in the Amazon, it needs all countries — including the U.S. — to successfully reduce carbon emissions," Mongabay reports.

Go deeper

Updated 33 mins ago - Politics & Policy

Giuliani associate Lev Parnas convicted of campaign finance crimes

Lev Parnas, a former associate of then-President Donald Trump’s personal lawyer Rudy Giuliani. Photo: Stefani Reynolds/Bloomberg via Getty Images

Florida businessman Lev Parnas was convicted Friday on charges of conspiracy to make foreign contributions to political campaigns, according to multiple outlets.

Why it matters: Prosecutors said Parnas, then an associate of former President Donald Trump's personal lawyer Rudy Giuliani, funneled over $150,000 from a Russian businessman into U.S. campaigns as part of an effort to land licenses in the U.S.'s legal cannabis industry.

Supreme Court agrees to hear challenges to Texas abortion law

Photo: Saul Loeb/AFP via Getty Images

The Supreme Court on Friday agreed to hear two cases challenging Texas' abortion law, which bans the procedure as soon as six weeks into pregnancy, but left the law in place in the meantime.

Why it matters: The court is moving extraordinarily fast on the Texas cases, compressing into just a few days a process that normally takes months. And that schedule means the court will take up Texas' ban a month before it hears another major abortion case — a challenge to Mississippi's own 2018 ban on abortions after 15 weeks.

Officials warn 5 key tech sectors will determine whether China overtakes U.S.

Illustration: Aïda Amer/Axios

U.S. intelligence officials responsible for protecting advanced technologies have narrowed their focus to five key sectors: artificial intelligence, quantum computing, biotechnology, semiconductors and autonomous systems.

Why it matters: China and Russia are employing a variety of legal and illegal methods to undermine and overtake U.S. dominance in these critical industries, officials warned in a new paper. Their success will determine "whether America remains the world’s leading superpower or is eclipsed by strategic competitors."