Isn't it amazing that humans have figured out how to harness energy stored within the planet in so many ways? We refine gasoline for use in car engines. We burn coal to generate power, and we use natural gas to power our stoves and grills. Energy sources are abundant, but we must bear in mind that they are a part of the earth's environment. Using them does have an impact on the planet, so it's best to be conservative in our energy consumption.
On this website, you can learn more about conserving energy, where energy comes from, and ways to "green up" your lifestyle from an environmental perspective. This is a vast planet and one that provides us with all of the energy we need, but it's up to us to use it wisely.