dirty energy
- fossil fuelsCombustible prehistoric organic deposits
- coalCombustible sedimentary rock
- oilSlippery viscous fluid
- pollutionEnvironmental harm from waste
- smogSunlight-activated urban pollution
emissions · carbon · smokestack · refinery · drilling · fracking · soot · exhaust · greenhouse · toxic · crude · tar sands · power plant · mining · combustion · petroleum · natural gas · black lung
environmental impact
dirty energyclean energy
Power from sustainable sources
green energy · clean power · renewable energy · sustainable energy · renewables