Computers and computer monitors in the United States are responsible for the unnecessary production of millions of tons of greenhouse gases every year, according to the Environmental Protection Agency. In U.S. companies alone, more than $1 billion a year is wasted on electricity for computer monitors that are turned on when they shouldn't be.
EPA officials say emissions could be drastically reduced if companies and individual computer users would follow a few energy-saving guidelines. NPR's Chris Arnold reports.
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