Former politician turned city official Jessyn Farrell, who still calls herself a “Save the Whales environmentalist,” tackles sustainability from all angles.

The climate crisis demands swift and decisive action — like bolstering public transportation.

Science says many types of animals can serve as “umbrella species.” But donors and the public pay the most attention to tigers, orangutans and other charismatic megafauna.

A single Franciscan manzanita plant nicknamed Francie, the last of its kind from the wild, charts an unlikely comeback in San Francisco.

One species she discovered, a critically endangered plant, eluded modern researchers for decades but has recently been rediscovered — as has Barber herself.

There’s never been more momentum for ocean conservation, but new research finds that many efforts fail to protect endangered species — or have barely gotten off the drawing board.

The Inyambo’s importance to Rwandan culture can’t protect them from threats like diseases, international conflict, and inbreeding.

This month’s best and worst environmental stories also include a rebounding lynx, a climate lawsuit boom, and a spa for frogs.

Animals, plants, and fungi depend on this humble tree, but its future — and theirs — is all but certain.