I believe the New Zealand community of Bishops has nailed this one (emphasis added):
In response, both individual and collective acts of selflessness are needed — of self-sacrifice for the greater good, of self denial in the midst of convenient choices, of choosing simpler lifestyles in the midst of a consumer society. This does not mean abandoning the scientific and technological advances which have given us such great benefits. It means using them wisely, and in a thoughtful manner which reflects true solidarity with all the people of the earth.
Ultimately, this is a global problem requiring real global solutions. But individual Catholics, parishes, Catholic schools, religious communities and church organizations can play a big part by making different choices, such as using less energy or buying locally made goods which require less transportation. The world needs to reduce its carbon output by 80%, and some New Zealand households could achieve that overnight by simply changing the kind of car they drive. Avoiding water waste and excess packaging are two simple steps which can be acted upon by individuals and households.
Evangelicals Christians should approach ecology the way Jesus approached ministry. Sometimes it was preaching to the masses from the mount or a boat. But more often than not it was one-on-one with Nicodemus or a womenਊt the well.
Ultimately it was sacrificial.
[Don's other habitat is The Evangelical Ecologist Blog]