Large-scale changes in Earth’s climate may originate in the Pacific
Long ago, ‘catastrophic’ purge of North America’s western ice sheet may have kicked off losses to the east
![picture of a ship in front of the Blackstone glacier](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/10/100120_gd_pacific-ice_feat.jpg?fit=1028%2C579&ssl=1)
The Bay of Alaska (Prince William Sound with the Blackstone glacier in the background seen here) holds clues to past climate change. The image was taken from aboard the JOIDES Resolution at the start of a 2013 expedition to drill for sediment cores.
Carlos Alvarez Zarikian, IODP/TAMU