The National Academies: What You Need To Know About Energy

The National Academies

What You Need To Know About Energy

Environmental Impacts of Wind-Energy Projects (2007)

As wind energy development continues to expand, federal, state, and local agencies should adopt a consistent approach to evaluating the planning, regulation, and location of wind-energy projects. Although wind energy, which provided about 1% of U.S. electricity in 2006, is often considered an option for future energy development because it emits no atmospheric pollutants and is driven by a renewable source, other environmental factors need to be considered. For example, wind-energy facilities can have a negative impact on specific kinds of wildlife and whole ecosystems. In this report, the NRC proposes a framework that can help in evaluating tradeoffs between the benefits of new wind-energy projects and the risks of adverse environmental impacts before new facilities are constructed.

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Energy Hands-on

What do you know about energy?

According to the Corporate Average Fuel Economy (CAFE) standards updated in December 2007, what is the average miles per gallon (mpg) required for new cars, SUVs, and light trucks (combined) by 2020?

  • Sorry, that’s incorrect.

    Based upon the 2007 CAFE standards, the new average mpg required by 2020 is 35 mpg.

  • Correct!

    Based upon the 2007 CAFE standards, the new average mpg required by 2020 is 35 mpg.

  • Sorry, that’s incorrect.

    Based upon the 2007 CAFE standards, the new average mpg required by 2020 is 35 mpg.