Sometimes, we see the physical consequences of our environmental decisions; sometimes, we don't. However, the hardest thing to see might be the moral consequences.
When it comes to fracking, which is a method of extracting energy sources from the ground, we only see a portion of the physical consequences: flammable water, sick people, and dead ecosystems. We don't see the tons of toxins fracking puts into the ground. Also hidden are the moral ramifications, but as Stephen Colbert points out in the following videos, our desire for cheap fuel makes us complicit in some very unethical actions:
Fracking eliminates entire ecosystems. It causes us to lose our health, and now, it robs us of our political voices. Putting all of this together makes for some heavy considerations each time we use energy.