The document discusses threats to clean water such as global warming, pesticides, toxic chemicals, and invasive species. It notes that the Clean Water Act is meant to protect lakes, rivers, and streams for fishing, swimming, boating, and drinking water. However, recent Supreme Court decisions and EPA actions have weakened the Clean Water Act's protections, putting the drinking water of 110 million Americans at risk. The state of Missouri could lose protection for 76% of its streams and 35% of its wetlands under the weakened law.