Being a Christian does not stop at the church door. Stewardship of God’s creation is just one of those many ways in which it doesn’t stop.
I see your point very well, but I think the global warming scam has got me a little twitchy on the subject of environmentalism. I don’t think the planet needs “saving”, and “going green” sounds a little too devotional. I avoid polluting on my own, but does not recycling a sin? Herein lies a danger: confusing religion with temporal dilemmas which have nothing to do with one another.