For the first time this Saturday, and every Saturday, we encourage people to run a 2-hour OpenLitterMap Marathon anywhere. Between 2-4pm, either by group or individuals, no matter where you are Every Saturday from 2-4pm, Simply: 1. Grab your phone 2. Walk outside 3. Take pics of litter 4. Upload and process them at OpenLitterMap.com to create free and open data on plastic pollution that is automatically analyzed by space, time, location and behaviour 5. For every 100 pics you submit correctly, you will get paid 1 Littercoin. Happy mapping!