People hold about 100 Megatons of dry carbon unless I made some fundamental error (9 billion * 65 kg * 0.185 [18.5% carbon by mass]). It's actually a bit amazin

People hold about 100 Megatons of dry carbon unless I made some fundamental error (9 billion * 65 kg * 0.185 [18.5% carbon by mass]). It's actually a bit amazing when one calculates figures like this.