Think globally; act locally
Lithosphere (0.2% C, 75% SiO2) 110 C at 4 km
Diameter = 1.3e6 m = 5e22 g (5000 species / g soil)
Biosphere 3e15 g (dry wt. marine); 2e18 g (land)
Microbial hydrosphere 1.4e21 ml = 1e27 cells = 4e33 bp
Anthrosphere (23% C) = 6e23 cells = 4e32 bp.