Energy Secretary Steven Chu, a Nobel laureate in physics, has proselytized for cool roofs at home and abroad.

• 能源部长、物理诺贝尔奖获得者朱棣文无论是在国内还是国外，都在为”降温屋顶“摇旗呐喊。”把你家的屋顶涂成白色。”