Wastewater from Pennsylvania’s oil and gas wells is salty and radioactive, and doesn’t suppress dust. Two researchers explain why it keeps ending up on rural roads.

A National Academy of Sciences report examined the latest advances in extreme event attribution science. As four of the authors explain, the type of disaster makes a difference.

Every bird, and every community, depends on healthy habitat. Forests, grasslands, wetlands, and coasts sustain birds throughout their life cycles while also supporting clean water, resilient...

In the early 1990s, biologist Alejandro Simeone was walking the beaches of Viña del Mar, in central Chile, when he encountered a scene that would end up defining his career: dead Humboldt Penguins...

In the early 1990s, biologist Alejandro Simeone was walking the beaches of Viña del Mar, in central Chile, when he encountered a scene that would end up defining his career: dead Humboldt Penguins...

Across the globe, birdsong is stunningly diverse—from the slow trills of a Northern Cardinal, to the flat whistle of a Three-wattled Bellbird, to the chirps and buzzes of a Barn Swallow. Behind...

Many sustainability programs may be aiming at the wrong target because most entrepreneurs won’t become environmental activists.

Native religions are tied to living landscapes, not points on a map. A scholar of Indigenous studies explains why reducing the protected area has profound religious and cultural consequences.

A new global assessment of the world’s migratory species finds reason for alarm, but also hope – and a road map for helping them survive.

Five figures that show how rising heat and rising electricity costs are colliding for US households 

The flute-like song of a Wood Thrush is one of the signature sounds of summer forests in the Northeast. But that familiar song is becoming less common as forests become increasingly fragmented and...