What's the use of energy efficiency if we're going to use it as an excuse to develop more stuff? In this essay, Ed Conway of SkyNews points to the Sphere on the Las Vegas Strip, and the LED-powered basketball courts used at the recent NBA All-Star weekend as examples of how our advancements in energy-efficient products have been canceled out by our penchant for more, well, products. At this rate, energy efficiency technology will need to outpace our hunger for more things to make any dent in our energy use, which, globally, sits around the same rough usage as it did in 2010, despite all our success in energy efficiency.Â