Scientists and companies increasingly support blocking some sunlight to avoid the worst impacts of global warming.

Ashish Jha, the former White House Covid-19 response coordinator, discusses the country's successes and mistakes.

A cadre of health business leaders and nonmainstream doctors are influencing the next President's health policy.

A lab-grown alternative to fattened duck liver offers a controversial future for the cultivated meat industry.

In recent years, some doctors have criticized the organizations for being overly punitive, and say they felt obliged to work ...

In the plains of western South Dakota, about 25 miles northeast of Mount Rushmore, the Ellsworth Air Force Base is preparing to receive the first fleet of B-21 nuclear bombers, replacing Cold War-era ...

If speeches and slogans could save the climate, COP29 in Baku, Azerbaijan, would already be a success. But there are few signs the current round of climate talks will deliver on the only thing proven ...

Teresa Carr is a Colorado-based investigative journalist and the author of Undark's Matters of Fact column.