The south coast of Bermuda where scientists dug up up fossilized shells of sea snails. Analysis of the shells shows a large pulse of cold freshwater covered the North Atlantic for a brief period of time about 125,000 years ago.
Credit: Ian Winkelstern
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.