It’s not that gas is free, it’s just very cheap relative to how much it costs us as a society. By driving less, you not only limit your own personal impact on climate change but also help encourage companies and public agencies to invest in better alternatives.
This is such an amazing write-up, and I wish everyone could take this into account and work on using public transport, unlike my place down here where almost everyone wants to own there person car, unknown to them that the toxic chemicals the vehicle release to the atmosphere as been negatively impacting our climate.