From the outside, the storage shed on the University of New Hampshire (UNH) campus in Durham looks inconspicuous enough-a standard white 48-by-12-foot box. It doesn't look too remarkable from the inside, either, housing a few electric jigsaws and racks holding thousands of cylindrical canisters filled with ice. This is not your average ice locker, however. It contains all the pieces of a two-mile strip of ice drilled from a massive ice sheet in Greenland. Moreover, this ice holds vital data about the earth's climate over the past 250,000 years and offers the most detailed record yet of the last 110,000 years of our planet's history.

Select from the choices above to read the entire article.