SASKATOON – Researchers used synchrotron light to determine that plant waste could be an ideal, cost-effective method for preventing arsenic in mine waste from polluting our water.

Total victory might be out of reach, but Tucson’s war on weeds isn’t a hopeless quagmire.

June’s record-breaking heatwave was the final ingredient needed for explosive wildfire growth. Fire experts say things could still get much worse.

Andrew Ellicott Douglass came to Flagstaff as an astronomer. But he spent his time here looking as much at pine trees as at stars and planets. Ponderosa pine, the most common tree, became the object of his research — leading him to pioneer a revolutionary science.

The North American monsoon has returned to Colorado, and the rain has brought some much-needed relief to some of the driest parts of the state — after multiple back-to-back years of almost no summer rain.

Officially at the airport, 1.64 inches in 2021 after getting only 1.62 in 2020.

Imagine a television so thin that it could be rolled up like a newspaper, or a thin film that could coat an entire building and generate solar power. Perovskites could make this possible.

Here in the desert, we can always use some rain — and Armin Sorooshian can make it happen. Sort of.

The punishing heat wave continues in much of the West. However, for some in places in the Southwest including Arizona, the long-awaited monsoon will bring milder temperatures and rainfall.

Drying juniper berries litter the ground as Rusine Stanley plunges a water hose into empty tanks in her backyard. As bubbles begin to gurgle, each tank fills to the brim.

Heatwaves are getting worse. Can urban America stay cool?