Vital Arctic sea ice shrank to tie its lowest measured level for the winter, the season when ice grows, as a warming Earth shattered records across the continents. Subscribe to read this story ad-free ...

In January, Canada’s PM Mark Carney declared the end of the rules-based order. It was a remarkable speech but, in one respect, flawed. US unilateralism didn’t start with President Trump. It had soared ...

Medical professionals recognize autism as a spectrum of disorders with diverse presentations. But several older terms may still be in general use. Share on Pinterest Cavan Image/Getty Images Autism ...