Table 1 Pre-industrial and PU climate simulations for a range of CO2 (ppm) and solar luminosities (Sol), both Modern and in 250 Myr (Sol + 2.5%); see Table 2 in Methods for details
From: Climate extremes likely to drive land mammal extinction during next supercontinent assembly
Habitability metrics | ||||||||
|---|---|---|---|---|---|---|---|---|
Scenario | Carbon dioxide concentration (ppm) | Habitable land (million km²) | Habitable land (million km²) | Percentage of total habitable land | Desert percentage of planet | Land and ocean (°C) | Land only (°C) | ΔTeq (°C) |
Pre-industrial | 280 | 147.9 | 97.5 | 66% | 30% | 11.73 | 5.32 | 3.7a |
PU, 280 ppm, Sol | 280 | 145.5 | 78.8 | 54% | 42% | 15.28 | 19.22 | 2.4 |
PU, 560 ppm, Sol | 560 | 145.5 | 39.8 | 27% | 40% | 19.28 | 23.97 | 4.0 |
PU, 1,120 ppm, Sol | 1,120 | 145.5 | 24.9 | 17% | 40% | 22.59 | 28.64 | 3.3 |
PU, 280 ppm, Sol + 2.5% | 280 | 145.5 | 36.0 | 25% | 44% | 19.89 | 24.53 | 2.3 |
PU, 560 ppm, Sol + 2.5% | 560 | 145.5 | 23.8 | 16% | 47% | 23.36 | 29.28 | 3.5 |
PU, 1,120 ppm, Sol + 2.5% | 1,120 | 145.5 | 12.0 | 8% | 49% | 27.30 | 35.12 | 3.9 |
PU, 560 ppm, Sol + 2.5%, 2 × Orog | 560 | 145.5 | 27.3 | 19% | 43% | 21.75 | 24.78 | 1.9 |
