Of Whales and Ocean Warming-A plan to sound out the sea's temperature may be back on course

摘要

In a dozen universities and institutes from Massachusetts to Hawaii, oceanographer Walter Munk and his colleagues wait expectantly. If they get the permits they seek, the scientists will set sail this summer from Hawaii and California. Not far off the coast, they will lower two loudspeakers, each the size of a water heater, deep into the ocean.