A new study by the Digital Power Group says an iPhone uses as much energy as a refrigerator.
Yes, a refrigerator.
A medium-sized, Energy-Star fridge uses 322 kilowatts an hour each year. By comparison, the average iPhone uses 361, including the wi-fi connection, data usage and battery charging.
But, it's not just smartphones.
Add up all the new technology on the market, and it uses about 10 percent of the world's energy. All the new technology together uses 50 percent more energy than global aviation uses.
Analysts say the need for electricity will just keep growing, because who knows how many devices or even what types of devices we'll have in 20 years.