Migrants face dangerous conditions when they attempt to cross the mountainous desert terrain of southern Arizona, and new research shows those conditions are likely to only get worse because of climate change.

In neighboring Sonora, there is a major push to increase solar energy capacity. And in the capital, Hermosillo, city leaders are piloting a new program to put solar panels on private homes

In January 2021, a series of winter storms started hitting Texas. By the time they were over, millions were without power, leading to shortages of heat, food and water. Hundreds of people died. Now, people in the Phoenix area are worried they could face a similar crisis from a prolonged heat wave.

As construction continues for two light rail extensions in Phoenix, leaders are feeling optimistic about adding more.

In the before times, Flagstaff mushers raced their dogs on sleds, in snow. But dog sledders have shifted gears recently. In November, a group of racers gathered at Arizona Nordic Village for two days of racing. There was no snow on the ground, just a dusty trail where they lined up in carts or mountain bikes pulled by dogs on harnesses.

One of President Biden’s goals has been to combat climate change. But some conservationists are disappointed with his efforts so far.

It’s season’s endings for “Word” as we close out 2021. What do a former hotshot from Arizona, a Valley poet with a new collection about addiction as well as a planetary scientist and writer from Tucson have in common? They’re part of “Word.” It’s a podcast about literature in Arizona and the region.

The study found reductions in emissions from passenger light duty vehicles reductions saved money and lives. But, factors could reduce the benefits these reductions have had.

A University of Arizona astronomer was an adviser for “Don’t Look Up,” a movie about two scientists who learn that a comet is about to strike the Earth.