Hurricanes that make landfall are maintaining their strength longer because of climate change, a new study suggests, meaning such storms could have more of an impact than in the past. The reason storms are maintaining their strength, according to researchers at the Okinawa Institute of Science and Technology Graduate University (OIST), is the increase in sea surface temperatures. A hurricane needs several things to form, the main one being warm water. When warm, moist air rises from that water, it’s replaced by cooler air which in turn warms and rises. Clouds form and then, under the right conditions, begin to rotate with the spin of Earth. Given enough warm water, the cycle continues and a hurricane forms. It’s well understood that, because of climate change, ocean temperatures have risen.