ESS101C
Prof. Jin-Yi Yu
Clouds – A Major Uncertainty
qHow do all types of clouds (high and low clouds) respond to global warming?
qPossibility 1: more clouds during global warming
q      Global warming
èMore water vapor available to form clouds
èMore clouds
è
qPossibility 2: less clouds during global warming
q      Global warming
èA warmer atmosphere can hold more water vapor
èReduce the condensation of water vapors to clouds
èLess clouds
(from The Earth System)