Go for it it ' s all chinks <| sep |> Just made a quick calculation . The world ' s yearly energy consumption is 104 , 426 TWh . That ' s 3751018 J . Just 60 minutes of sunlight on Earth deliver 6241018 J oversimplified Earth as a flat disc of 6371 km radius facing the Sun perpendicularly , solar power is 1360 Wm 2 . So , really , even if heat from engines does warm the environment up it ' s not by any significant amount . The real issue is trapping energy from sunlight and that happens because of greenhouse gases . <| sep |> I guess wolves are just an easy scapegoat ? Pretty much . People want their problems to be simple and have simple solutions . They want it to be something they can understand and not have to rely on someone else , especially not a specialist , to understand it for them .