StudentScience: Sea levels have been rising pretty quickly over the past two decades on average, about 3 millimeters (0.12 inch) per year. Scientists had known that this rate of rise was speeding up. But new data indicate that, compared to 25 years ago or more, those recent increases are far steeper than previously realized. That could boost how much scientists expect seas will rise in coming decades. Such information is important for people living near coastlines. Carling Hay was on a team of scientists that...