The idea behind this form of "geoengineering" as it's called, is that, as the planet heats up, we may be able to shoot sulfates and aluminum particles into the stratosphere to reflect some of the sun's rays back to space, thereby cooling the planet.
这种被称为地球工程学的背后的观点 是，当地球变暖问题上升时， 我们应该能发射硫酸盐和铝粒子 至同温层 并把一些太阳光 反射回太空， 以此降低地球的温度。