My experience shows why local politicians need to push back against climate denialism.

The idea that ecosystems carry plenty of backup, so if a small number of species become extinct there is little harm, has been greatly overestimated, according to the largest global study of its kind.

Who gets all that cash, and what do they do with it?

Children ages 3 and 4 take a median of 18,542 steps a day, but their daily step counts vary widely, according to the first international reference values for daily step counts in preschool-age children, published in the journal The Lancet Child & Adolescent Health.

Returning global temperatures to a climate target does not necessarily undo the damage caused by exceeding it, new Concordia-led research published in the journal Communications Earth & Environment finds.

Scientists discovered two strange new sea spider species in the Salish Sea, including a hairy-legged, red-eyed species that can groom itself with comb-like appendages. Another is frequently covered in tiny parasites, and researchers say many more undiscovered sea spiders may still be hiding in the region.