NASA researchers have dropped 90 rubber ducks into holes of Greenland's fastest moving glacier: the Jakobshavn Glacier in Baffin Bay. Scientists are unsure as to why glaciers speed up in the summer months. One theory is that the summer sun melts ice on the surface of the glacier, which creates pools of water, which then flow into moulins -- narrow tubular shafts in the glacier. These then transport the water from the top to the underside of the glacier. The rubber ducks, labeled with the words "science experiment" and "reward" in three languages, along with an email address, may provide some answers. It is hoped that in addition to bath time, the ducks can make a livable climate lots of fun.