Central Arizona Project recently did a "blow off" in a 1-mile-long siphon in northwest Phoenix, removing water in the ...

The Arizona Department of Environmental Quality (ADEQ) is welcoming the public to comment on the Draft 2026 Clean Water Act ...

The Santa Cruz River, dried up and polluted, came back to life recently, sustained by highly treated wastewater from two ...

The process is officially known as evapotranspiration, which is how plants, including corn, release water vapor into the ...

The heat index considers the actual temperature and amount of moisture in the air using the dew point or relative humidity.

Arizona groundwater is a lifeline that sustains cities, tribal communities, farms, and plants and animals. Learn the basics.

Some parts of the Mid-South could see heat indexes of 110 this week. Here's how you can say safe in the extreme temperatures.

Check back for live FLORIDA TODAY Space Team launch updates on this page, starting about 90 minutes before the early morning SpaceX launch window opens.

Dark “slope streaks,” likely resulting from dust avalanches, stretch across an area of Mars called Acheron Fossae in this ...

Transpiration, the process of plants releasing water vapor, is crucial for plant cooling but can lead to dehydration in extreme heat. Continuously high nighttime temperatures exacerbate plant stress ...

Arizona is bracing for cuts to its Colorado River water. At the same time, an ASU study shows the state is losing groundwater.

As Arizona continues to face a historic water crisis, the state is exploring bold new solutions, including turning reclaimed water into drinking water.