Trichloroethylene (TCE), a chemical commonly used for decaffeinating coffee, degreasing metal, and dry cleaning clothes, is believed to be contributing to the rise of Parkinson’s disease, the world’s fastest-growing brain condition. TCE is a pervasive contaminant, present in several sites including the Marine Corps base Camp Lejeune, 15 toxic Superfund sites in Silicon Valley, and up to one-third of groundwater in the U.S. TCE is known to cause cancer, linked to miscarriages and congenital heart disease, and has been associated with a 500 percent increased risk of Parkinson’s disease. An inter…