It’s tiny, it’s silver and it’s at the center of a decades-long controversy over California’s water system. It’s the delta smelt. This threatened fish lives exclusively in the Sacramento-San Joaquin ...

A letter on this page two weeks ago criticized me for being part of the “mainstream” view on climate change and global warming. The writer also criticized stating that his viewpoints were being ...

In this Special Issue of Science, 3 Reviews and a Policy Forum highlight research on Earth's frozen places – from the Arctic to the Antarctic – and ...

Elon Musk said he and Trump want to shut down the agency because of its purportedly “radical” work, but the controversy seems mired in partisan politics.

Warmer winters, denser living conditions, less vegetation and limited rat control resources also contributed to the growth in urban rat populations.

Ever wondered about the white lines stretching across the sky? These are contrails—condensation trails formed by aircraft ...