Just for fun, respectfully DERECHO64, read up on the Gakkel Ridge Rift/Fault System that runs from Greenland to Siberia, and is now considered by many geologists to be the reason for the polar caps melting. These volcanoes make the Alps look like hills! They are now putting out enough heat to have major climate impact in the Arctic, yet for over a decade, science claimed the melting was man made. The study of the underwater activity has yet to be fully examined and studied, but new evidence is surfacing it has a direct impact on global climate, one that was often dismissed in the past, which is now becoming very much relevant today as we watch the ice sheets melt. 


I will go a step further and submit my own thoughts that the ocean currents that carry this heated water has also effected the migration of aquatic marine life, one because of it's acidity killing effect, secondly because of the confusion to sea life that rely on temperatures in their migration patterns. 

Have a great day