Old Weather - Zooniverse

JASON Connection: Climate: Seas of Change
Help scientists recover worldwide weather observations made by U.S. Navy and Coast Guard ships. Join the Old Weather Project to examine and transcribe historic records from these ships from the mid-1800s to 1950. The data you recover can improve knowledge of past environmental conditions and can provide additional data to be fed into computer climate models.
URL: http://www.zooniverse.org/project/oldweather