Wired: In January 2010, a crew of scientists voyaged by ship from the southern tip of Chile into the frigid Antarctic to search for clues to one of the great unknowns of climate change. They planned to crisscross a remote patch of sea near the spot where, a year earlier, another crew had injected a tankful of an inert chemical one mile below the surface. The new crew had seven weeks of funding and good weather to sample the seawater throughout the region and discover where the chemical went. By mapping...