I absolutely agree with David, and I’d just like to point to this article from a few days ago: The Bishop of London (Church of England) has said that needlessly contributing to global warming is a sin. This is the case whether you fly somewhere for a vacation, or simply fail to winterize your home.
Making selfish choices such as flying on holiday or buying a large car are a symptom of sin. Sin is not just a restricted list of moral mistakes. It is living a life turned in on itself where people ignore the consequences of their actions.