GreenTracker| Greeland’s glaciers aren’t melting only because of global warming in the atmosphere. Scientists are tracking waters from subtropical waters, flowing into the glaciers from below.
Deep inside the Sermilik Fjord, researchers found subtropical water as warm as 39 degrees Fahrenheit (4 degrees Celsius). The team also reconstructed seasonal temperatures on the shelf using data collected by 19 hooded seals tagged with satellite-linked temperature depth-recorders. The data revealed that the shelf waters warm from July to December, and that subtropical waters are present on the shelf year round. via Science Daily
Coincidentally, PBS featured an excellent story on this topic of melting glaciers, just last evening. See Journey to Planet Earth.