From The Sober Science of Migrating Rubber Duckies Excerpt: Dr. Behar and his colleagues gathered in August at the entrance of an immense fissure in the 980-meter-thick Jakobshavn glacier in Greenland, which has been thinning rapidly since 1997. They released 90 rubber ducks and an electronic probe into the moulin to explore the subterranean melt-water streams.
