Environmental scientists use their expertise to protect natural resources. If you're interested in chemistry, you might examine how certain chemicals affect plants, animals, and people. If you're interested in ecology, you might research the way rainfall, temperature, pollutants, and human activity affect an area.
As our population grows, we will need environmental scientists to preserve water, give advice on land-use and building projects, study and design sites for waste disposal, control pollution, and repair damaged natural areas. Whatever your focus, you'll work to solve some of the most serious problems facing the world today.