a_d
Tuesday, August 20th
In this Aug. 15, 2019, photo, a boat navigates next to a large iceberg in eastern Greenland. Greenland's ice has been melting for more than 20 years, but in 2019, it's as if Earth's refrigerator door has been left open, and it means a potentially large rise in the world's sea levels. (AP Photo/Felipe Dana)