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New Evidence reignites a longstanding debate about how the sea reconnected with the ocean.
A new collection of oral histories from people who work and live near two Arizona Superfund sites was posted online in January. The community-driven Voices Unheard project captures video accounts, photos, and descriptions from communities near the Tucson International Airport Area and the Iron King Mine-Humboldt Smelter Superfund sites.
A mass emergence of crane flies has many Tucsonans wondering what the creatures are, why there are so many of them and why they seemed to show up all at once. A University of Arizona insect expert has answers.
Climate change deepens existing inequalities.
Across much of the United States, a warming climate has advanced the arrival of spring. This year is no exception. In parts of the Southeast, spring has arrived weeks earlier than normal and may turn out to be the warmest spring on record.
Katie Bell began her summer internship as a stranger in a strange land. But by the time she was finished, Bell knew her way around well enough to propose $20,000 of practical cost-saving methods. The company rewarded her with a full-time job offer.
The Supreme Court is taking up the Trump administration’s legal quest to keep certain Endangered Species Act records from the public eye.
In the race against global climate change, researchers at the University of Arizona are working to preserve, catalog, and map the potential of thousands of species of imperiled fungi found in the world’s boreal forests.
The interplay of carbon dioxide, winds and Southern Ocean waters could be reaching an environmental tipping point
Wells are going dry in rural Arizona, leaving residents struggling. A recent investigation by The Arizona Republic and a documentary by NBC News tell the stories of residents of groundwater-dependent regions within La Paz and Cochise counties whose households have been affected by falling water tables.