We all know global warming is going to start killing people soon it has killed some already , so why aren ' t people stopping using fossil fuels by themselves ? Because we live in a world where people need a car to live their day to day life ? You say you ride a bike . That ' s great . What about someone who works twenty miles from their home ? Give up their job ? I ' ve been taking care of my mother lately due to health issues . She lives 50 miles from my home . What am I supposed to say when she needs me ? Sorry mom , I ' m trying to reduce my carbon footprintIf you can ' t see why people don ' t just give up fossil fuels you ' re simply delusional and need to hop off your high horse . I ' m sorry for being so hostile about it , but that ' s a very unrealistic and judgemental thing for you to say . EDIT I want to add that as soon as it ' s practical I would love to buy a more environmentally friendly vehicle . Right now , that ' s not a option . It ' s great that you do your part , but you ' re not doing anyone any favors by judging others who can ' t do what you can .