The lives of one in ten of Earth's species are connected to lakes and their tributaries.

Combining evidence from archaeology, geochronology and paleoenvironmental science, researchers identified how ancient humans by Lake Malawi were the first to substantially modify their environment.

The Supreme Court recently dealt defeat to Florida in its 20-year legal battle with Georgia over river water. Other interstate water contests loom, but there are no sure winners in these lawsuits.

Earth's floating solar power capacity has grown one-hundredfold in the last five years.

Glacial runoff appears to have fed an ancient crater lake on Mars, boosting the idea that the red planet had a cold and icy past.

It's an ecological disaster, but my research shows we should not lose hope.

Conservation or copper? A proposed mine in northern Minnesota pits industrial jobs against a thriving outdoor economy.

New findings boost chances of finding life on Mars, but there are better candidates in the solar system.

Warmer waters, heavier storms and nutrient pollution are a triple threat to Great Lakes cities' drinking water. The solution: Cutting nutrient releases and installing systems to filter runoff.