Well - you do think there is a "good" way to live. You believe you can have what you want because it does not affect others but they cannot have what they want because it might affect you. I could actually argue that your way of life if adopted by many would have a serious effect on others but that is another point.I do not think that there is a 'good' way to live - just ways which are less damaging to the environment. I do not think it is enough to wait until countries make international treaties to reduce Co2 emissions - every individual is responsible for their own. Unfortunately your car effects my environment, whereas my 'commune' does not effect yours - therein lies the difference. I cannot identify what 'greed' is - but I can say that taking more than you need from the World is dependent on someone else doing without, and that is theft. Actually the World does not belong to us exclusively - my ideal society would be living with nature, and not from it. You are not far wrong in suspecting that I come from a religious background Arturo, though I try not to bring this into debates such as this - although I have advocated 'communal' ownership, because the concept is understandable, in my heart I believe in no such concept as ownership. How can I own a field ? Do I own every living thing within it ? The field, or the forest, belongs to itself - so maybe I belonged on the Indian prairies somewhere.
You are hung up on CO2 emissions. If technology is developed to reduce their effect then it will be good. You must know that scientifically there is great debate about how much CO2 is needed and how much is too much - or too little. My car only affects your environment if the emissions are greater than the ecosystem of the planet can neutralise. Nothing is bad in isolation.
Your definition of theft is simply wrong and its misuse destroys any logic in your argument. You were closer when you stuck to "greed". What most people who go on about fat cats and the like fail to recognise is that they are themselves the fat cats to many others in the world. If you think you can take the worlds resources and then divide them equally between 8 billion then good luck with that.
Ownership is just a convenient definition. Everybody dies so only "borrows" resources for a short term in the life of the planet. All ownership does is to give people the right - within legal restrictions - to use something as they wish to. You accept personal ownership of some things but choose to stop at some arbitrary point where you decide enough is enough. Again there is neither logic nor a "right" on this. Your wealth is probably abhorrent to your Indian prairie dwellers.
Religion and religious belief is irrelevant. I am sure you are not saying because someone thinks a man died on a piece of wood and was brought back to life their views have any especial significance. I think you are really thinking about more of a compassionate view of the world. The Puritans I made reference to were simply bigots.
Still a few random thoughts from rural France.
The voles in my garden appear to think that my role in life is to provide them with dinner from my vegetable plot. I wish the odd buzzard would pop round now and then.