At the ocean’s edge, slabs of ice break off of glaciers and tumble into the water as icebergs. But these iceberg births are poorly understood. Scientists don’t know how the ice will break or how much the glacier will lose. Continue reading
Glacial ice is like nature’s ancient history book, and today the story is climate change. Science correspondent Miles O’Brien reports from Alaska, where researchers are studying how warmer temperatures affect the ancient ice and the living things that depend on it. Continue reading
Alaska’s glaciers are facing a warm future. Scientists are digging into the icy giants to learn more about how they have weathered past climate changes, and if they will survive. Continue reading
A study released by NASA and others offers the most definitive evidence that parts of the ice sheet in West Antarctica are melting and the damage is irreversible. The collapse will take more than a century, and the melting will lead to rising sea levels. Judy Woodruff talks to Thomas Wagner of NASA, one of the team’s lead members, about the larger consequences of these projections. Continue reading
Traveling just over 6 mph would hardly break any speed record. But for a glacier, it is a pace that is considered unprecedented.
In fact, the summer speed of Greenland’s Jakobshavn Glacier, according to a new study published by The Cryosphere, has more than quadrupled its summer speed since the 1990s. The study claims that the glacier, which is believed to have spawned the iceberg that sunk the Titanic, set speed records faster than any previously recorded for glaciers or ice streams in both Greenland or Antarctica.
Melting glaciers mean more water to explore and profit from in the Arctic, but it can also mean danger for mariners. NewsHour producer April Brown reports that scientists from the NOAA who inform sailors how close they can get to the ice have not been able to keep up with the dramatic speed of climate change and new vessels. Continue reading
James Mates of Independent Television News looks at the alarming rate glaciers are melting atop Mt. Everest and how that could affect the rest of the world. Continue reading