This week’s five Friday facts come from David Bach’s Go Green, Live Rich. Bach’s book also provided last week’s facts.

• If all U.S. households received electronic statements instead of paper, and paid their bills online, we’d collectively save 18.5 million trees every year.
• General Electric saved $6.5 million in electricity costs a year simple by changing its computer settings.
• If every U.S. computer and monitor were turned off at night, the nation could avoid emitting 7 million tons of CO₂ every year.
• According to the EPA, only about 5 percent of laptop and desktop computers in the U.S. have their energy efficiency settings enabled.
• By enabling settings such as “low power mode,” “sleep,” “hibernate,” etc. as much as 80 percent of the energy that would have been consumed will be conserved.

Image source: Metropolitan Museum of Art