I agree about the population, etc., BUT we each have to do simple, small things in our own lives regardless in order to bring about beneficial changes, too. As Janie said, these things may seem small, but collectively they add up just like the "widow's mite" in the Bible. An example, about ten years ago, we switched all of our light bulbs out to the fluorescent ones which last so much longer and use less energy. It doesn't seem like much and that's not all we do, but it still helps. Here in Colorado, we can choose through our energy company to opt for power through alternative sources. It's a little more expensive, but it helps.