Tag: Earth's ecosystems

Slow Arctic Freeze Raises Risk of Polar Bear Extinction, Say Scientists

Record absence of ice after freak warm spells denies pregnant bears birthing dens and triggers ‘extirpation event’ warning.A record slow freeze of many regions of the Arctic this winter is making it harder for...

New Global Database Will Help Scientists Track Role of Lakes in Earth’s Ecology

The total shoreline of the world's lakes is more than four times longer than the global ocean coastline. And if all the water in those lakes were spread over the Earth's landmass,...

FEATURED