Scientists discover important facts about Antarctic ice using old photos

Scientists from Copenhagen University studied an old black and white photo from 1966. A Navy photographer took this picture of ice in Antarctica. The researchers compared it with modern satellite pictures and found something important.

Warm ocean water goes under the ice shelf and makes it weak from inside. This discovery helps us understand how ice shelves break apart. The process might be slower than scientists thought before, but this makes it harder to stop.

When ice shelves break, sea levels rise. People must reduce greenhouse gases quickly to prevent bigger problems.