The current the mass of the atmosphere is approximately $5\mathrm{.}310^18$ kilogram on$.$ For our purpose it is $79\%$ nitrogen and $21\%$ oxygen. How much fossil fuels expressed as kilograms of carbon must have been burned to raise the carbon dioxide concentration of the atmosphere from $210$ ppm to $350$ ppm$?$ the bulk density of Carbon is $2267$Kg$/$m$^3?$ what is the volume in cubic liters for this much carbon?