Arizonans looking forward to cooler winter weather may be disappointed this season, as the National Weather Service said it predicts drier and warmer-than-normal conditions in the Southwest. Every ...

Add Yahoo as a preferred source to see more of our stories on Google. Are we about to face the strongest El Niño in a decade? The signs are hard to ignore: there is an 82% probability that the ...

A combination of water management practices has contributed to notable groundwater gains in Central Arizona despite the region dealing with long-term water stress, according to a study led by ...

A study led by University of Arizona researchers shows that decades of groundwater pumping by humans has depleted Tucson-area aquifers far more than natural climate variation. Published in the journal ...

Everyone has that one friend who moved to Arizona raving about 300 days of sunshine, backyard pools, and winter walks in short sleeves. The pitch is genuinely appealing. No snow to shovel. No gray ...