| Nation | CO2 reduction pledge/% of 2005 emissions | Number of gigantic solar plants needed (Ouarzazate) | Gigantic plants needed for 40% reduction |
| Canada | 30 | 230 | 300 |
| Mexico | 25 | 120 | 200 |
| Argentina | Noneii | 0 | 80 |
| Peru | Noneii | 0 | 15 |
| Uruguay | Noneii | 0 | 3 |
| Chile | 35 | 25 | 30 |