Seasonably warm with patchy clouds
Rises at 6:20 AM with 14:19 of sunlight, then sets at 8:39 PM
Rises at 5:48 PM with 10:44 of moolight, then sets at 4:32 AM
Jun 20, 2013; 5:00 AM ET What was once difficult to measure is now being done. Researchers have found a new way to determine the amount of evaporation globally. Valerie Smock explains how it's done.