“Biomethane is an energy dense, storable, and flexible energy source with a high greenhouse gas saving potential and the ability to generate negative emissions.”
from — Biomethane – gas for Climate 2050. (n.d.).
“The methane in biogas is 28[15] times more potent a greenhouse gas than carbon dioxide. Therefore, uncontained landfill gas, which escapes into the atmosphere may significantly contribute to the effects of global warming. In addition, volatile organic compounds (VOCs) in landfill gas contribute to the formation of photochemical smog.[16]”
from — Wikipedia
“Alternative fuels are often described as “green” or renewable energy, but this isn’t always the case. Alternative energy is a broader category that encompasses all non-fossil-fuel-based energy sources and processes, of which renewable energies are only a part.”
from — Alternative Energy Sources: What is Alternative Energy? | Inspire Clean Energy. (n.d.).