The structures, burial grounds and large number of significant artefacts unearthed there, and their well-preserved state due to the dry desert climate, make this site a rich source of information ...

Turning dry desert air into drinkable water once sounded ... As water supplies shrink across the region due to drought and climate change, scientists have taken a huge step toward creating a ...

Researchers are concerned the declines will lessen the scale of and in some cases possibly eliminate the large saguaro forests in Arizona.