The global ranking

Below you see the 3 selected top and bottom solutions and the development in the ranking over the last 10 days.

Top 3 problems

1. Rural Water Supply

2. Water treatments

3. Voucher programs

Other problems

4. The Doha Round

5. Health initiatives

6. Malaria program

7. Conditional Cash Transfer

8. Microfinance

9. Combining R&D and Mitigation

10. Liberalizing migration

11. Tuberculosis treatment

12. Salt Iodization

13. Iron Home Fortification

14. Improved stoves

15. Mitigation of CO2

16. Particle filters on cars

17. Peacekeepers Post-Conflict

Bottom 3 problems

18. Security Guarantee

19. Increased Proactive Response

20. Greater International Cooperation

Filter by group