Keep a song in your heart.
In the beginning God trusted mankind with the care of a beautiful and perfect world. It's in the Bible, Genesis 2:15, NIV. "The Lord God took the man and put him in the Garden of Eden to work it and take care of it."
God expects us to be trustworthy in our stewardship of resources. It's in the Bible, I Corinthians 4:2, RSV. "Moreover it is required of stewards that they be found trustworthy."
God warns that those who destroy the earth will be destroyed. It's in the Bible, Revelation 11:18, NIV. "The nations were angry; and Your wrath has come. The time has come for judging the dead, and for rewarding Your servants the prophets and Your saints and those who reverence Your name, both small and great—and for destroying those who destroy the earth."