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After 25 years of declining flows on the Colorado River, a new study led by University of Colorado researchers offers hope for a partial turnaround.

Ice cores, seeds, and plants all contain vital clues that will be lost without nature archivists whose work is harder than ever.

Extreme heat and dry conditions amplify one another — a positive feedback loop climate scientists call “hot drought.” Findings show, however, that hot drought has never been this severe.

Extreme heat and dry conditions amplify one another — a positive feedback loop climate scientists call “hot drought.” Findings show, however, that hot drought has never been this severe.

Las vegas (ap) — There’s no precedent in at least five centuries for how hot and dry the West has been in the last two decades, new research asserts using