The strike against Tucson-based copper producer Asarco by unions representing about 1,800 workers in Arizona and Texas is in its eighth month, with no talks underway or planned.

The day that George Floyd died in police custody in Minneapolis, Minnesota, a white woman called the police on an African American man birdwatching in New York's Central Park.

Heat and COVID-19, a new resource from the Global Heat Health Information Network (GHHIN) that launched in May, provides an array of science-based resources on coping with heat during the COVID-19 pandemic.

Heat and COVID-19, a new resource from the Global Heat Health Information Network (GHHIN) that launched in May, provides an array of science-based resources on coping with heat during the COVID-19 pandemic.

You breezed through your first winter — we know, 75 degrees and sunny in January was tough — but you did it. You really liked spring, when you were able to get outside, and even though it's starting to get a little toasty now you're thinking you can handle summer. Because, really, how much hotter can it get?

Sparked by a racist incident last week in Central Park, the new initiative aims to boost recognition and representation of Black people enjoying and studying the natural world.

Construction crews, seen at right, have begin clearing an area on the north side of Mariposa Road where a flyover traffic ramp is set to be built. The trees at left, part of a row of eight trees leading up to the construction site, will not be harmed by the project, the Arizona Department of Transportation said.

Many hard lessons already have been learned — and, in some cases, ignored — as the COVID-19 pandemic ravages the world. The good news is that, so far, the water and wastewater sectors in the United States have been largely spared. This likely will continue to be the case: Treated drinking water will remain safe to drink, and utility and wastewater treatment workers do not appear to be in any novel danger.

Compared with cutting fossil fuels, tree planting would play only a small role in combating the climate crisis.

A data-driven media installation, created to reflect marine conditions around the world, has altered with the slowing human activity.

In an experiment colloquially called "adobe Stonehenge," researchers at the Desert Research Learning Center at Saguaro National Park are looking at the impact of heavy rainfall on adobe brick construction.