I admit I am not bothered about the environment, mainly because I object to the people who shove it down my throat.
My cousin in the UK thinks we are disgusting because we have a 4x4 and use ac. She says that she would NEVER use ac, even if she was in Qatar during summer. That's just the kind of silly extremism that turns me right off the whole thing.
I do take my own carrier bags to Carrefour, for no other reason than it is common sense. If it takes 200 years to break down a carrier bag, try not to throw so many away.
I believe and care about many other causes and give time, energy and money to those.