Their solution was a new roof: a shiny plasticized white covering that experts say is not only an energy saver but also a way to help cool the planet.

• 他们的救星是一种新型的屋顶：一种闪亮的白色塑型覆盖材料。专家们说，这种新型屋顶不仅仅是一种保温材料，还能帮助我们的地球降温。