Crude oil and natural gas are two kinds of fossil fuels used to power homes, cars, businesses, and more. However, there are many problems associated with these resources. Obtaining and burning fossil fuels is incredibly harmful to the environment. Oil drilling often results in spills, which threatens many plant and animal species. The fracking process can leach dangerous substances into freshwater supplies, further putting biodiversity and even human health at risk. This inside look at a pressing environmental issue exposes the dangers of oil drilling and fracking but also informs readers of alternative energy sources that are less of a danger to the natural world.