Table 2 Change in the affected population at X°C warming vs. the historical climate according to the two approaches based on the lookup method. (unit: million). Note that the affected population was predicted to be 1.62 billion under the historical climate (1980–2014), the detailed explanations of the historical flood hazard map is provided in (Supplementary Text S1).
At 1.5 °C warming | At 2 °C warming | At 3 °C warming | ||||
|---|---|---|---|---|---|---|
9GCM average | Unbiased Standard deviation among 9GCM | 9GCM average | Unbiased Standard deviation among 9GCM | 9GCM average | Unbiased Standard deviation among 9GCM | |
(1)Using only SSP5-RCP8.5 | + 47 | 39 | + 61 | 39 | + 80 | 34 |
(2) Using our proposed method | + 48 | 37 | + 56 | 36 | + 83 | 31 |
Change ratio from (1) to (2) | − 5.1% | -7.9% | -9.7% | |||
