An epic project has worked out how much carbon there is on Earth. The answer is 1.85 billion billion tonnes – and most of it is underground
Source:
https://www.newscientist.com/article/2218180-weve-totted-up-all-earths-carbon-and-99-per-cent-is-underground/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home