Ice is melting, seas are rising—how scientists are tracking the changes

Will the sea rise by 20 cm or 3 meters by 2100? This is obviously an interesting question to answer. Predicting the sea level in 75 years requires precise calculations and correct models of the melting of the ice from, e.g., Greenland. To do so, researchers need valid data—and photos, too. All of this can be obtained by space technology.