A Japanese radiative cooling film that stays below air temperature in direct sun, with zero electricity. How SPACECOOL dumps heat into space, its 29% energy cut in Saudi trials, and why passive cooling matters as the planet warms.
Tokyo's tree canopy fell from 9.2 percent in 2013 to 7.3 percent in 2022, a 20 percent drop in nine years, and Japan has roughly 500,000 fewer street trees than at its peak. As Singapore, Paris and New York expand their canopies, why do Japanese cities keep losing shade? A look through public data and recent research.
