Young climate activists like Jamie Margolin are building a movement while growing up — planning mass protests from childhood bedrooms and during school.

Sounding a warning on pesticides.

The planet’s tallest animal is in far greater danger than people might think.

Humpbacks are some of the most watched whales in the world, and yet so much of their lives remains a mystery.

At 37, Brian Wallach was diagnosed with the fatal disease. So he tapped a lifetime of connections to give help and hope to fellow sufferers—while grappling with his own mortality.

To speak of the human as such, as the modernists did, is like taking a piece of the wild, putting it into a petri dish, adding bleach and antibiotics until more than half of what’s in there is dead and then celebrating the barely-living remains as “the human.” Provocatively put, the human is a sterile abstraction, a harmony of illusions.

EEE kills almost half of its victims, and cases are on the rise.

A cri de cœur on AIDS: “If we don’t act immediately, then we face our approaching doom.”

A profile of the contrarian French scientist Didier Raoult, who proposed an anti-malarial drug as a COVID cure.

Exploring your subconscious during quarantine.

The explorers who set one of the last meaningful records on earth.

Can genetic engineering bring back the American Chestnut?

The island of Borneo is the only home of the proboscis monkey, an endangered primate that is surprisingly resilient.

A guide to making sense of a problem that is now too big for any one person to fully comprehend.

Wuhan-based virologist Shi Zhengli has identified dozens of deadly SARS-like viruses in bat caves, and she warns there are more out there

The initial coronavirus outbreaks on the East and West Coasts emerged at roughly the same time. But the danger was communicated very differently.

Nature is already socking away a lot of carbon for us. It could soak up a lot more—if we help.

The life and work of a Manhattan psychoanalyst.

There’s a hidden cost to the way Florida’s farmers bring in the sugar crop. Just visit the hospitals and measure the climate impact.

Around the world, more than 40 teams are working on a vaccine for Covid-19. How one doctor is approaching the most urgent quest of his life.

A profile of climate activist Greta Thunberg.

Artist Eric Bealer was living the remote, rugged good life in coastal Alaska with his wife, Pam, an MS sufferer, when they made a dramatic decision: to exit this world together, leaving behind precise instructions for whoever entered their cabin first.

An interview with Richard A. Epstein of the Hoover Institution.

On water scarcity in Mexico City.

An early profile of Carole Baskin, proprietor of Big Cat Rescue in Tampa.