Scientists are studying a unique frozen archive of Greenland's ice sheet. They're searching for clues to Earth's past and our planet's warmer future, as a result of temperature-rising climate change.
Subscribe for more Breaking News: http://smarturl.it/AssociatedPress
Website: https://apnews.com
Twitter: https://twitter.com/AP
Facebook: https://facebook.com/APNews
Instagram: https://www.instagram.com/APNews/
You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/2a476e35f90943efbaf238111e261db8