albedo

A similar example of lowered albedo occurs when sea-ice melts and disappears, causing the darker coloured sea underneath to absorb more heat..当海冰融化消失时，会同样降低反射率，导致深色的海底吸收更多的热量。

Different varieties of the same plant can vary in how much light they reflect, a property called albedo, so selecting for higher-albedo crops would enhance the cooling effect from agriculture..同一类植物的不同品种具有不同的反射率，而选择那些反射率更高的品种将能提高农业对控制全球变暖的贡献。

"You change the albedo of the Earth, " he explained..他解释道：“因为你改变了地球的反照率。