Scientists are using bacteria to remove harmful contaminants from our water. Here's how.

Minnesota farmers are closely following the debate over how best to manage nitrates. Many farmers—no one knows the number exactly–are already taking action to lower their use of nitrates, which can contaminate water.

A new three-year project between the health department and the U.S. Geological Survey designed to improve the way arsenic, a carcinogen, is measured in private wells and to develop guidelines to help contractors avoid drilling high arsenic wells in the first place.

The amount of plastic debris in our oceans and water sources - especially nanoplastics that are increasingly prevalent in our food chain - is so enormous it's often beyond comprehension, and immensely difficult to address. As countries continue to industrialize and single-use products become more commonplace, the flow of harmful plastics into the environment seems insurmountable. But a number of clever inventions and dedicated individuals are working to help get plastics out of our water - and more importantly - encourage practices to reduce, reuse, and recycle.

By releasing fish into the Chicago River, the city of Chicago aims to help clean up its ecosystem, as the fish hopefully will eat the river's excess algae.

Clean water and healthy ecosystems are becoming increasingly difficult to come by. With floating islands and other inventions, eco-entrepreneur Bruce Kania thinks that biomimicry - such as reconstructing wetlands and growing biofilms - can tackle the toughest of water problems.

Warming water has led to the collapse of coral reef systems in the western Indian Ocean, essential to fisheries, protecting shorelines, and reducing beach erosion and sea-level rise. Marine scientists from Nature Seychelles, as part of an international project to protect and restore the reefs, are promoting varieties of coral that they have found to be resistant to the rise in temperature.

The U.S. federal government rarely requires manufacturers to list the chemicals in consumer goods outside of food. Various states are starting to enact legislation requiring greater transparency.

Prescription drugs are greatly polluting the national water supply, causing researchers to begin looking for a method to better filter water and dispose of unused medicine.

Property rights, circumscribed jurisdictions, and conflicts with neighbors exacerbate Native American efforts to restore tribal land and resources. Some tribes have found success by tapping into a trend of support from the government and conservationists.

New water management technology implemented along the Columbia has significantly helped the fish population - specifically salmon - return to healthy numbers and has restored much of the community and industry that revolves around the river, including for native peoples.