In 2011, Brownsville became one of the first cities in the United States to require stores to charge a fee for single-use plastic shopping bags. The ordinance was enacted to reduce pollution and litter around the city. The city repealed the ordinance in 2018 after it was ruled illegal by the Supreme Court of Texas. "Forbes" identified Brownsville as one of 12 metropolitan areas in the United States with the cleanest air. In 2018, the Brownsville–Harlingen area was among the "Cleanest U.S. Cities for Ozone Air Pollution" in the American Lung Association's "State of the Air" in 2018.