Earth's natural resources include water, forests, minerals, soil, and much more. But humans are steadily depleting these resources by using more than the planet is able to replace. Readers discover the many ways people are contributing to the problem of resource depletion in this engaging and educational volume that explains a major environmental issue. Although the text explains the dangers of resource depletion, it does not leave readers feeling hopeless. It describes the problem but also possible solutions, including conservation and the use of renewable energy sources.