Table 1 Monte-Carlo parameters

Present-day values

 Carbonate weathering

7 × 10¹² mol/year

14 × 10¹² mol/year

⁷⁶

 Total outgassing

4 × 10¹² mol/year

16.25 × 10¹² mol/year

^{43, 77}

 Total organic carbon burial

5 × 10¹² mol/year

14 × 10¹² mol/year

^{43, 78}

 Basaltic fraction of silicate weathering

0.17

0.35

^{29, 76, 79}

 Pyrite degassing

0.12 × 10¹² mol/year

0.38 × 10¹² mol/year

⁵¹

 Gypsum degassing

0.25 × 10¹² mol/year

0.75 × 10¹² mol/year

⁵¹

 Marine pyrite sulphur burial

0.53 × 10¹² mol/year

0.87 × 10¹² mol/year

^{43 a}

 Marine gypsum sulphur burial

1 × 10¹² mol/year

4 × 10¹² mol/year

^{43 a}

 Pyrite weathering

0.37 × 10¹² mol/year

0.53 × 10¹² mol/year

^{43 a}

 Gypsum weathering

1 × 10¹² mol/year

3 × 10¹² mol/year

^{43 a}

 Reactive phosphorus weathering

3.7 × 10¹⁰ mol/year

4.7 × 10¹⁰ mol/year

^{48, 80}

Weathering activation energies

 Seafloor weathering

40 × 10³ J/mol

100 × 10³ J/mol

⁸¹

 Basalt weathering

33 × 10³ J/mol

62 × 10³ J/mol

^{40, 79, 82}

 Granite Weathering

45 × 10³ J/mol

62 × 10³ J/mol

^{40, 83}

Reduced gas flux

 Modern H₂ outgassing

0

2.2 × 10¹² mol/year

^{84, 85}

Oxidative weathering

 Power law dependency on O₂ concentration

0

0.5

^{41, 43}

Climate sensitivity

 Sensitivity to a doubling of CO₂

1.5 °C

6.0 °C

^{43, 86}