"Green" credits are awarded as follows:
- Best answer in Environment category on Yahoo! Answers: 75 credits
- Best answer in all other categories on Yahoo! Answers: 10 credits
- Performing a oneSearch on your mobile phone: 10 credits
- Taking the Green Pledge at http://green.yahoo.com: 100 credits
A user can take the Green Pledge only once. Also, users will be credited for a maximum of five mobile searches per day with Yahoo! oneSearch.