Policy

The Clean Air Act, now undermined by the Supreme Court, exemplifies how the U.S. government once tackled “major questions”—and could again

The court’s use of the “major questions” doctrine is likely to spur challenges to climate and energy regulations

Studies are “decades behind,” owing to a lack of funding, but research is picking up

The agency can still impose stronger limits on other air pollutants that coal plants produce, which could also reduce greenhouse gas emissions

Doctors must get more involved in the public health crises that climate change will bring

An emergency medicine physician remembers witnessing the carnage of more than one mass shooting

A study shows that first responders who are not police can be more effective for low-level incidents

Government or company-wide mandates give businesses cover for policies perceived as political

Justice Alito’s leaked opinion signaling an end to Roe v. Wade is the latest in a broad trend of rejecting science and expertise

The two countries must put aside their mistrust in order to establish rules for the peaceful use of outer space

In case you missed it

How science helps us see, hear and fix things we can’t easily perceive