The Trump administration’s unprecedented decision to deny a delivery of water to Mexico is raising alarm among experts, who ...

Dry spring weather is causing plants to use more snowmelt, reducing Colorado River streamflow. This explains why runoff ...

"Many locals had never seen water in this part of the Colorado River before." Residents stunned by quiet transformation ...

Dozens of tiny black weevils cling onto a fern plant as it is tossed onto a leafy green mat coating the surface of South ...