Climate change may cause huge waves to swell in the Arctic, reports Gizmodo.<br />This could have a devastating impact on coastal communities.<br />The Arctic is warming twice as fast as the rest of the planet.<br />Much of the region has historically remained frozen for most of the year, but it is heating up.<br />Its sea ice is melting, creating increasing periods of open water, especially in the summer.<br />A new study published in Geophysical Research Letters shows that could have dangerous consequences.