Climate Scientists Use Crowd-Sourcing to Help Map Global CO2 Emissions (image) Arizona State University Share Print E-Mail Caption Darragh O'Keefe (GIS specialist) logs on to the Ventus website to demonstrate its Google maps interface. Citizen scientists from around the world can play the game by entering information on power plants including the location, type of fuel used and the amount of electricity produced. Credit Sandra Leander Usage Restrictions Photo credit: Sandra Leander Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.