How Antarctica Froze Over

Thanks to Brilliant for supporting this episode of SciShow. Go to to grab a gift subscription to help your loved one spark a lifelong love of learning. Antarctica wasn t always covered in kilometer thick ice sheets, in fact, scientists have spent years figuring out what turned this once lush continent into its current icy state. Hosted by: Olivia Gordon SciShow has a spinoff podcast It s called SciShow Tangents. Check it out at Supp