Nobel laureate Paul Crutzen has suggested another solution: manipulate the climate by releasing white sulfur particles high up in the stratosphere, where they would remain for several years, exerting a proven cooling effect on Earth’s climate without affecting human health. In 1991, the eruption of Mount Pinatubo in the Philippines created a haze of sulfur in the higher atmosphere that cooled the entire planet approximately half a degree Celsius for two years afterwards.
诺贝尔奖得主保罗·克鲁岑提出了另外一种解决方案：即向高空平流层释放白色的含硫颗粒，让其在那里停留数年，并在不影响人体健康的情况下发挥可以证实的冷却效果。1991年菲律宾皮纳图博火山喷发释放到高空大气层的硫烟雾在之后的两年时间内导致全球气温降低了摄氏半度。