Fossil fuels
Surface Ocean
Plants in oceans
Atmosphere
sedimentary rocks
Soils
Plants on land
Earth's crust
Intermediate and deep oceans
1,000,000 Pg
38,000 Pg
5,000 to 10,000 Pg
725 - 970 Pg
560 to 610 Pg
100,000,000 Pg
3 Pg
750 Pg
1,500 Pg
