Table 3.
Projected unsuitable and suitable areas for the five major producers of maize under current climate conditions and coverage. Percentage changes indicate alterations under the future projected climate in relation to the current climate.
| Current climate | Percentage changes in areas under future projected climate change | |||||||
|---|---|---|---|---|---|---|---|---|
| Total area (106 km2) | Percentage | CSIRO | MIROC | |||||
| 2050 | 2100 | 2050 | 2100 | |||||
| EI = 0 | EI > 1 | EI = 0 | EI > 1 | EI > 1 | EI > 1 | EI > 1 | EI > 1 | |
| Argentina | 11.05 | 16.92 | 39.5 | 60.5 | −2 | 1 | −2 | −1 |
| Brazil | 6.41 | 78.81 | 7.5 | 92.5 | −5 | −64 | −7 | −63 |
| China | 48.78 | 45.23 | 51.9 | 48.1 | 4 | 13 | 5 | 20 |
| Mexico | 3.31 | 16.15 | 17.0 | 83.0 | −11 | −45 | −12 | −47 |
| USA | 32.33 | 62.75 | 34.0 | 66.0 | 8 | 16 | 6 | 9 |
EI = 0, unsuitable area. EI > 1 includes three categories: marginal, suitable and optimal suitability.
Note that these are the total suitable projected areas and not the actual areas under maize cultivation.