lol lee's leg long lug and. plenty legs . most of the carbon that we brought in from across to the earth is millions of years old coal particularly interesting because her unit of energy generated coal actually may be the cheapest fuel but it also releases the both carbon to beat up a serious carbon dioxide beginning at artist with the development of the steam engine the late seventy's and early eighty's humans began to. extract fossil curva from the earth's crust coal oil. may have something here but over some time period it would be uplifted and subject them to erosion of the. return to the atmosphere but those rates are tiny compared to the ability of humans to grow with large machines to deliver a large quantities of this material to the surface of your earth where it is bird to be used for generation of energy we have larger quitman that was introduced on surface lands about twenty five years ago here last evening which accounted for that the ability to recover coal seams that heretofore been on land of the use of dragli