"Cause" is a very strong word. Even if more water in the ocean created pressures that contributed to the recent earthquakes, there are certainly other factors--

"Cause" is a very strong word. Even if more water in the ocean created pressures that contributed to the recent earthquakes, there are certainly other factors--by which I mean even without global warming, the EQs would have occurred anyway--eventually. Perhaps it accelerated the coming of the most recent ones. It's hard to conduct scientific "experiments" like this without a supercomputer to simulate the actual effects of greater pressure on the plates.