Why is the smell of Arizona's monsoon so distinctive? It releases the aromas of the desert, one ecologist says.

Their approach—combining respect for natural desert beauty with sophisticated design sensibilities—established principles that continue to influence landscape architects working in arid environments ...

Workmen plant electricity poles in the rust-orange earth of the Navajo Nation and run cables to Christine Shorty's house -- finally giving her power against the searing Arizona desert heat.

Workmen plant electricity poles in the rust-orange earth of the Navajo Nation and run cables to Christine Shorty's house -- finally giving her power against the searing Arizona desert heat. It will be ...

Dozens of planned green factories have been canceled, with more delayed or downsized, all hit by soaring costs, high interest ...

While Barron-Gafford said some laughed him off when he first proposed the idea of growing crops in the shade of solar panels, ...

Workmen plant electricity poles in the rust-orange earth of the Navajo Nation and run cables to Christine Shorty's house – finally giving her power against the searing Arizona d ...

Sand scorpions, nocturnal hunters who spend their days in burrows, also leave distinct tracks.

MP Materials’ goal to become a national rare-earths “champion” that can go toe-to-toe with China was turbocharged by Pentagon investment.

Clean-energy projects have new deadlines for federal tax credits and limits on foreign parts, taking aim at California’s climate agenda.

Find out which U.S. airports travelers love most, based on reader reviews, transportation data and our own expert analysis.