Place the following energy sources in order of their least net carbon dixide emi
ID: 569263 • Letter: P
Question
Place the following energy sources in order of their least net carbon dixide emission into the atmosphere, where 1. = lowest net carbon, and 5. = highest net carbon. In your calculation, take into account: How much carbon dioxide (or CO2 equivalent) is emitted per unit energy generated. If the source is renewable, how much carbon dixide (or CO2 equivalent) is removed from the atmosphere each year by that resource. How much energy is needed to produce and deliver that energy source.
Biodiesel (Algae-based)
Nuclear
Biochar sequestration (produced by torrefaction or pyrolysis).
Biogas (recovered biogenic methane [landfills, livestock waste])
Pyrolysis (Biomass gasification)
Explanation / Answer
1) Nuclear energy doesn't emit carbon dioxide 2) Biochar sequestration is carbon negative, the carbon is sequestered in soil for 100-1000 years and there is net reduction of CO2 in the atmosphere 3)biomass=biodiesel a carbon-neutral energy source 4)Pyrolysis(biomass gasification), the biomass used in this way is used to produce syngas which contains CO+H2 and CO exacerbates atmosphere and is a harmful pollutant.