Eco-Friendly Cooling from an Innovative Metamaterial

services-762103_960_720Conventional air conditioners are energy hogs. According to the US Department of Energy, air conditioning in the United States accounts for 117 million metric tons of CO2 released into the atmosphere every year. Air conditioning is expensive, too—according to the Texas utility Austin Energy, households in warmer regions of the country can expect cooling their homes to account for 60 to 70 percent of their summer electric bills. Continue Reading…