Scientific research shows that chlorpyrifos, a widely used insecticide, is strongly linked to brain damage in children. These and other health concerns led several countries and some U.S. states to ban chlorpyrifos years ago, but the chemical was still allowed for use by farmers in the U.S. after successful lobbying by its manufacturer. In August 2021, the Biden Administration acknowledged the danger to children and announced it would ban chlorpyrifos from agricultural use. However, in November 2023, the U.S. Court of Appeals for the 8th Circuit overturned the EPA's ban. The American Academy of Pediatrics, which represents more than 66,000 pediatricians and pediatric surgeons, has warned that continued use of chlorpyrifos puts developing fetuses, infants, children and pregnant women at great risk. Scientists have found that prenatal exposures to chlorpyrifos are associated with lower birth weight, reduced IQ, the loss of working memory, attention disorders, and delayed motor development. A population based case-control study found that, "Prenatal or infant exposure to a priori selected pesticides"including glyphosate, chlorpyrifos, diazinon, and permethrin"were associated with increased odds of developing autism spectrum disorder." According to an analysis published in July 2020, U.S. regulators relied on falsified data provided by Dow Chemical to allow unsafe levels of chlorpyrifos into American homes for years.