As the Arctic warms up and sea ice melts, it is changing the large-scale weather patterns that help move storms around. These steering currents affect the movement of mid-latitude low pressure centers, but also help push around tropical storms and hurricanes. A new study of the impacts of this shift in the big atmospheric wave patterns shows that one consequence of a warmer Arctic might be a shift in the jet stream to allow Atlantic hurricanes to move farther west instead of recurving in the Western Atlantic. If this happens, the number of US landfalling hurricanes could increase as more of them could make their way into the Gulf of Mexico where land surrounds them. You can read more about this study at National Geographic at