The nonprofit group American Rivers has released its annual list of the country’s 10 most endangered rivers, and Arizona’s Santa Cruz River ranks fourth.

The warming climate has all kinds of implications for all kinds of aspects of our ecosystems. New research from Northern Arizona University finds even a slight temperature increase in boreal forests can lead to less snow, which in turn leads to other changes.

These new federal funds, made available through the Inflation Reduction Act, are solely eligible for tribes residing in the 17 western states served by Reclamation.

Journalist and author Stephen Robert Miller, who grew up in Tucson, wrote "Over the Seawall" about how lofty attempts to control nature and protect ourselves from climate change often backfire. He joined The Show to talk more about the book.

For most of its 6 million-year existence, the Colorado River ran from the Continental Divide, high in the Rocky Mountains, downward and west, through forest and red rock, to a lush delta at the northernmost tip of the Gulf of California. Its winding descent carved, among other wonders, what people now call the Grand Canyon.

Stories of melting ice in the Arctic and the effects of climate change on animals like polar bears have been common over the past several years. Kiliii Yüyan has spent a lot of time in that region, documenting both people and animals — and their ways of life.

The atmospheric rivers that’ve pummeled California this winter have caused flooding, mudslides and other impacts. But the phenomenon is also leading to an increase in Valley fever cases in that state.

Randy Cerveny, an ASU professor and "the world's weatherman," joined The Show to talk about his new book, "Judging Extreme Weather."

Every year since 2016, the number of people in Maricopa County who have died from heat-related causes has risen to a new high. The 2023 preliminary report confirms last summer’s extreme temperatures led to another record-breaking death toll.