Deforestation alerts in the Amazon fell by 50% in 2023, according to a report from the Deter system released Friday by Brazil s National Space Research Institute (INPE), with data collected until Dec. 29 in an area of 5,152 km². It was the lowest rate since 2018, it also explained. In 2022, the alerts had registered 10,278 km² of deforested areas, the highest level ever.