Government scientists say coastal sea levels in the U.S. will rise by 10 to 12 inches by 2050 — that’s about the same level of sea rise as the past century in just 30 years. The findings were released in a report Tuesday by the National Oceanic and Atmospheric Administration. Coastal areas will suffer from even more frequent and dramatic flooding, and water supply and trade routes could be disrupted. The country’s top expert on the issue says the projected increase will happen even if countries are able to drastically reduce emissions, though acting to limit Earth’s warming will help prevent even greater climate catastrophe.