Collapse of Antarctic ice shelvesMODIS, NASA'S EARTH OBSERVATORY
As climate change defrosts the Earth’s poles, masses of ancient microbes—some that were captured in ice over 750,000 years ago—are emerging from deep-freeze in the Antarctic, according to a feature report from Scientific American.
The melting Antarctic ice sheets, once thought to be barren, are teeming with microscopic cells and liberate living bacteria as they melt, according to Montana State University professor John Priscu, who has grown the ancient bacteria in his lab. "There's a lot of history in that ice sheet," Priscu told Scientific American. "It's a way of recycling genomes. You put something on the surface of the ice and a million years later it comes back out."
The fact that the cells are still alive is a big deal, said Louisiana State ...
