Geography

The Bureau of Reclamation and the Upper Basin states have drawn up a proposed framework to create plans to maintain Lake Powell water levels.

Aspen’s new water resource plan outlines the strategy for creating emergency storage to address threats to existing supplies.

Glen Canyon Dam, climate change and invasive plant species are threatening the Colorado River.

Despite widespread global success and huge opportunity for reducing fossil fuel demand, solar water heating is virtually unheard of in the U.S.

The drought pool would be filled voluntarily, largely by farmers and ranchers, who would be paid to temporarily dry up their fields.

Although snowpack in the mountains near Aspen is hovering above normal for this time of year, streamflows in the Roaring Fork River are predicted to be just 85% of normal for April.

Once criticized for being a profligate user of water, fast-growing Phoenix has taken some major steps — including banking water in underground reservoirs, slashing per-capita use, and recycling wastewater — in anticipation of the day when the flow from the Colorado River ends.

As drought and climate change sap the Colorado River, even the water in the Upper Basin’s high-elevation reservoirs isn’t enough to protect the larger system.

Colorado water officials hope to combat algae blooms caused by rising temperatures and an increased use of phosphorus-laced lawn fertilizers.

PARKER, Arizona – South of Headgate Rock Dam, beyond riverbanks lined with willow and mesquite, the broad floodplain of the Colorado River spreads across emerald fields and sun-bleached earth.  The...