Why should I buy an eco friendly car ?

I have been hearing a lot about eco friendly cars and what an individual should do to save it or should do in trying to save it, one solution that has been found by a lot of people is to discourage people from buying gas guzzlers, SUVs and muscle cars. I have grown up without seeing dinosaur’s, walrus’s or for that matter many more things in life that existed few years or decades or centuries back. And I have learnt to live like this .Why should we bother to save oil or for that matter tigers which are almost extinct right now. Why are we spending hundreds of millions of dollars on a lost cause? Why should we meddle with the way of life? Dinosaurs became extinct because of something that happened on earth millions of years back, same is the case with mammoths or walrus’s. No external forces resulted in the above outcomes. Now why should we save something that is not supposed to exist in a few years in the first place. Who knows by saving one species we are indirectly destroying another. We are part of Nature and what we do is part of nature ,just like the ice age that occurred centuries back or the cyclones that destroy life now a days. You may say it’s because of Man’s greed that nature is feeling the grunt of the effects but isn’t Man a part of nature, isn’t his greed part of his nature. Who are we to revoke this right of his? Oil may exist for few more years or it won’t .Its fate has to be naturally decided without any intervention led by considering future aspects. Tigers as a race will survive or they will perish, we cannot and should not alter this because by doing this we don’t know what we might cause in the future and therefore we should let nature take its course of action. There is no reason to alter the nature’s way therefore there is no reason why we should judge people on the choices that they make with respect to nature.

“The World is what we make it but not what we want to make it"