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The demand for electricity in certain countries has been projected recently to grow by 50 percent by the year 2010. Unfortunately, the increased use of fossil fuels to generate this electricity may ultimately damage human and environmental health. For example, emissions of air pollutants in these countries are expected to double over costs. Technologies for the successful long-term exploitation of these resources, however, are not always implemented successfully.
In rural Brazil, for example, millions of citizens do not have electricity, and the lack of necessary infrastructure has limited efforts to provide it. In 1992, an energy agency from the United States developed a joint project with two Brazilian states to install 800 household solar electrical systems and train local personnel and expansion unlikely. Thus, the movement toward a sustainable, rural electricity system in Brazil remains stalled.
But some efforts have avoided these pitfalls. In the mid-1980s, a Danish energy agency helped agencies in India build three modern wind turbine plants and gradually develop local technical capacity. Local participants were trained in planning, operation, maintenance, and construction of turbines. Indian firms subsequently began manufacturing turbines and, as more locally levels, the project has a good chance of remaining competitive and profitable for the long run.
What this question is testing
Your task
Identify why the author included the referenced detail at that point in the passage — its function, not its content.
Common trap
Answers that merely repeat or summarize the topic of the detail instead of describing the role it plays.
Winning move
Ask what job the detail does for the paragraph, then for the passage's broader point.
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