It is obvious that engineering played a significant role in the development of the world. Many contributions engineers have given are visible in the world and in people's daily lives. Unfortunately, humans often learn through trial and error, and much of the world has been developed in ways that did not contribute to the well-being of the planet or future generations. Poor planning as well as economic and political gains have played critical roles in how much of the world has been developed. Today, however, many engineers are learning from the past and making amends for these mistakes. Civil and environmental engineers are playing a particularly important role in new development. Predominantly beginning in the 1990s, civil and environmental engineers have stressed the importance of sustainable development. They understand that future economic growth and stability, as well as the health of nations and people, heavily rely on the health of the planet. Sustainable development promotes this well-being, and will aid in preserving the environment and securing a healthy future for generations to come. (Contains 5 figures.)