Even the Cactus May Not Be Safe From Climate Change

More than half of species could face greater extinction risk by midcentury, a new study found, as rising heat and dryness test the prickly plants’ limits.

Researchers at Biosphere 2 will plant coffee trees to celebrate Earth Day

Twenty-five coffee trees will be planted in the Biosphere 2 to help researchers investigate how climate change will affect coffee trees. An Earth Day 5K run will also be held at the research facility.

Why there's hope in the face of climate change

For many of us, climate change conjures up nothing but images of doom and destruction, from disastrous storms to wildfires to scorching heat. And it’s true — much of what we read about climate change paints a dire picture of our planet’s future.

Time, tradition and trust: The Navajo Nation takes on climate change

For many years, Tsegi Canyon on the Navajo Nation struggled: Its dry walls and streambanks were eroding, exposing crumbling red soil to the desert sky. Its springs were drying up; native plants were few and far between on the canyon floor, often replaced by invasive weeds.

UArizona climate adaptation experts contribute to latest IPCC climate report

The report assesses the impacts and risks of climate change, looking at ecosystems, biodiversity and human communities at global and regional levels.

Tumamoc Hill's historic boathouse — yes, boathouse — sees new life

Tumamoc Hill looks out over a sprawling city ringed by desert and mountains, without a single, substantial body of water in sight.

So why does the hill have its own boathouse?