Scientists stumbled upon another possible global warming feedback as they were tracing the “life” of a giant iceberg in the Antarctica. One day it broke, seemingly for no reason. The instruments the scientists had put on the iceberg recorded a disturbance that they eventually traced back to a storm in Alaska, on the other side of earth. The meaning of all this is that increased storms, a probable result of global warming, increases ice to break and therefore melt, which increases global warming - and that’s another feedback we now have to worry about. Source. Easy read summary.