New in Science: As Alaskan permafrost warms, hibernating arctic ground squirrels generate less heat, causing females to emerge from hibernation up to 10 days before their male counterparts—a mismatch that could have large, cascading ecological impacts. scim.ag/2O0
11
16
98
51K
3
Download Image
@ScienceMagazine Before the year 1350 the Earth's temperature in the northern hemisphere was much warmer than today. 4000 vikings settled Greenland and raised sheep and grew crops until the little ice age hit. We could be heading back to that time that's all