The Colorado River Basin has seen an extensive loss of groundwater loss over two decades, with more than half of the loss being in Arizona, according to a new map drawn from NASA satellite data.

Of all the challenges facing the Colorado River, there’s at least one that all stakeholders are working on collaboratively, not competitively — salinity. Since 1974, the seven Colorado River basin ...

The Colorado River, a vital resource for millions, has reached a critical tipping point, thanks to drought and overuse. The river needs urgent, collaborative action and flexible solutions for ...