The earth and all that is on it is God's gift to us and with any gift, it should cherished, used wisely so that we would be good stewards of the blessings it brings.  Knowing this Christians should be the first in line in advocating for environmental preservation, conservation and environmentally sustainable methods of co-habitating with everything else that exists on this plant.  That means buying the more expensive products that are environmentally friendly even though it makes a dent in our wallet.  That means supporting organizations that save the environment and advocating for more sustainable methodology in our line or work, in our homes and in all facets of our life.  That means stopping cruelty to animals in science, cosmetic testing, and in slaughter houses.  That means composting, and recycling even if it's an inconvenience and a bit messier in our plastic wrapped society.  But most of all it means loving God and trusting that if we choose Him in EVERY action we make, we will bring him glory, in every step we make His blessings will return two fold!