It is too bad that the word 'environmentalist' has been hijacked so that many people think it only refers to extremists who put this cause ahead of everything else. It is true there is a large group of people who have taken things too far. However, Christianity and nature go hand in hand.
After all, the Bible is full of passages that deal specifically with nature. The verses I posted above are just one example. If you do not believe me, google the words 'Bible and nature' and see what type of response you get. The beauty of nature is one of the most important pieces of evidence Christians can present when it comes to defending the existence of God and our faith.
When it comes to the resources God has blessed us with, it is important that we be good stewards of them. People think of this mostly when it comes to managing our money and other material assets. This line of thinking should also apply to different aspects of life, including how we use environmental resources.
If we do not, everything could go: 'Poof!'