Hurricanes could be lasting longer after they make landfall, and spreading their damage farther inland, a new study suggests—a previously undescribed effect of climate change.

The study, published today in the journal Nature, analyzed hurricanes that have struck North America from 1967 to 2018. It found that hurricanes making landfall in the 1960s lost 75 percent of their power in the first day after coming ashore. Today, a hurricane that strikes land typically decays by about 50 percent in the first day, the study says.

2020 has been a record-breaking hurricane season, with 29 named storms so far and still weeks to go until the official end on November 30. The Gulf Coast has sustained billions in damages, and Hurricane Eta,