| North-South Convergence and the Allocation of CO2 Emissions | 6 |
| 11 / 2012 | 12 / 2012 | 01 / 2013 | 02 / 2013 | 03 / 2013 | 04 / 2013 | 05 / 2013 | |
| North-South Convergence and the Allocation of CO2 Emissions | 0 | 0 | 2 | 1 | 0 | 1 | 0 |
| 1 | Spain | 2 |
| 2 | United Kingdom | 2 |
| 3 | Chile | 1 |
| 4 | United States of America | 1 |
| 1 | Barcelona | 2 |
| 2 | Oxford | 2 |
| 3 | Redwood City | 1 |
| 4 | Santiago | 1 |