Oil slicks from ships and offshore oil platforms cover nearly 1.6 million square kilometers (618,000 square miles) of the ocean surface each year, an area slightly larger than the nation of Mongolia. The estimate comes from a recent report by Skytruth, a U.S.-based nonprofit that used satellite imagery, machine learning and vessel tracking data to trace global oil pollution in the oceans between 2023 and 2025. According to John Amos, CEO of Skytruth, this kind of pollution was largely invisible before satellite imagery made it possible to track. “Any vessel operator could be pretty confident that nobody was going to notice what they were doing out in the middle of the ocean,” Amos told Mongabay by phone. “So that’s changed. We can see it now.” Map courtesy of SkyTruth. Much of the vessel oil slicks come from bilge waste, a mix of oil and water that collects in the bottom of a ship’s hull during operation. Tankers sometimes also wash out their cargo holds and flush crude oil residue into the sea. “It’s nasty oily dirty gunk that you just want to get rid of,” Amos said. “And the easiest thing to do with it is just pump it out into the ocean while you’re at sea.” According to the report, most of these discharges are illegal under MARPOL, the international treaty on pollution from ships. A MARPOL treaty adopted in 1973 allows vessels to discharge bilge water containing no more than 15 parts of oil per million parts of…This article was originally published on Mongabay

SAO PAULO (AP) — Brazil’s upcoming presidential election could reshape the Amazon’s future. Control of the country, which contains about 60% of the rainforest, could pass to Sen. Flávio Bolsonaro, son of former President Jair Bolsonaro. Experts warn a Bolsonaro victory could reverse deforestation-control policies restored by President Luiz Inácio Lula da Silva. During Jair Bolsonaro’s presidency, Amazon deforestation surged by about 60%. Lula reinstated an anti-deforestation plan in 2023, reducing deforestation by 45%. Flávio Bolsonaro pledges to end illegal deforestation by 2029 but has not detailed how. Concerns remain about potential weakening of environmental protections. By Gabriela Sá Pessoa, Associated Press Banner image: A forest burns in the Amazon, in the municipality of Manaquiri in the Brazilian state of Amazonas, on Wednesday, Sept. 6, 2023. Image courtesy of Edmar Barros, Associated Press. This article was originally published on Mongabay