Nunatsiaq: Scientists trying to measure the impact of climate change in Baffin Bay have employed narwhals as research assistants to gather temperature data from the icy depths. The use of the animals as “biological oceanographers” has shown that waters in this key habitat for the tusked whale are warming faster than previous climatology data had suggested. The researchers from the University of Washington and the Greenland Institute of Natural Resources attached tags with satellite-readable temperature sensors…