Here’s what you’ll learn when you read this story: Humanity’s impact on the planet is so immense that our engineered megastructures have altered the very rotation of the planet. A new study from ...

Environmentalists may hate dams, but the cities of Colorado’s Front Range are counting on them to support their booming ...

It began with a simple idea: hold back rivers to store water. But over nearly two centuries, this effort — multiplied across nearly 7,000 dams worldwide — has done something no one expected. It has ...

Federal workers have taken the first steps in a $32 million maintenance of the Blue Mesa Dam, the largest of three dams that were built in the 1960s to create Colorado's biggest reservoir. It's the ...