This cave in Canada remains frozen every summer-and it's been frozen since the last Ice Age 10,000 years ago. What can it tell us about Earth's future climate?
Stream "Polar Extremes" online to learn more: www.pbs.org/wgbh/nova/video/polar-extremes/
Director: Lucy Haken
Assistant Producer: Sacha Thorpe
Digital Production: Angelica Coleman
© WGBH Educational Foundation 2020
19 феб 2020