他们的说法是，热带云层在一个有较多温室气体的大气中，会吸走周围天空的水气，因而让这部分的天空较透明而红外线较容易往太空散射。
They proposed that tropical clouds in an atmosphere with more greenhouse gas might dry out neighbouring parts of the sky, making them more transparent to outgoing infra-red.
这些水冰屑都太细小，无法散射长波红外线，却能够反射可见光，特别是光谱中波长较短的蓝光。
They are too small to scatter long-wavelength infrared light, but visible wavelengths can bounce off the particles - especially at the shorter blue end of the spectrum.
应用推荐