Environmental Engineer

Median pay: $81,200
Top pay: $113,000
10-year job growth: 31%
Total jobs: 50,000

The job: Want to save the earth and earn good money? As an environmental engineer, you get to apply your knowledge of biology, chemistry and other natural sciences to tackle problems such as pollution, waste management and recycling. These skills are quickly becoming sought after as businesses adjust to new water and air regulations, especially in the industrial and manufacturing sectors. Green initiatives are also beginning to catch on in several industries, including automotive (hybrid vehicles) and energy (like Shell Oil's move into wind energy).

How to switch: If you have experience in a related engineering field -- such as mechanical, civil or industrial -- a master's degree in a natural science like geology may be a good stepping stone. Almost all environmental engineers have bachelor's degrees in an engineering discipline.