Oil is burnt into CO2 that will remain for centuries in the atmosphere, heating it up (and I'm not mentioning countless toxic oil spills, methane leaking, etc).

Oil is burnt into CO2 that will remain for centuries in the atmosphere, heating it up (and I'm not mentioning countless toxic oil spills, methane leaking, etc). It's less immediately visible and acutely dangerous than toxic pools, but it's really bad.