• 2. Environmental engineer. This engineering specialty focuses on developing solutions for better water and air quality, says Laurence Shatkin, author of "200 Best Jobs for Renewing America." Other fields for environmental engineers include recycling, waste disposal and environmental cleanup. With stimulus funding for many of these areas, demand for environmental engineers is expected to rise, Shatkin predicts.

Most engineers have a bachelor's degree in engineering from a four-year institution, and participate in continuing education or graduate school to deepen their knowledge or a specialty or learn about emerging best practices in the field. Much of the work ahead, Shatkin notes, will involve devising solutions to clean up nuclear sites left over from World War II.

Environmental engineer: $68,600 per year / $33 per hour

• 3. Computer systems analyst. Without systems analysts, Shatkin says, "We'll never have a smart
  
  grid." Technological savvy will be needed to design systems that will allow electric transmission systems and broadband networks to operate with greater energy efficiency.

Demand is so great for this IT expertise that the Bureau of Labor Statistics forecasts nearly 50 percent growth in the field from 2006-2016, despite the fact that the existing labor force for this job is unusually young, with few analysts nearing retirement age. Most analysts have a four-year degree in computer science, information science, or management information systems.

Operating systems analyst: $63,000 per year / $30 per hour

• 4. Urban/regional planner. Urban and regional planners have a chance to dramatically impact the landscapes under their jurisdictions, says Shatkin. They aid governments in designing and locating schools, roads, and other infrastructure in a city or rural area, with an eye to minimizing environmental impact. They can also design zoning codes to help support environmental goals.

Schooling is rigorous -- even entry-level jobs with state, federal or municipal agencies require a master's degree in urban or regional planning or a similar field. As regulations grow more complex for meeting environmental requirements, more urban planners will be needed, he adds.

Urban/regional planner: $60,600 per year / $29 per hour