WCRP Grand Challenge on Clouds, Circulation and Climate Sensitivity
 
How do clouds couple to circulations in the present climate?
How will clouds and circulation respond to global warming or other forcings?
How will they feed back on it through their influence on Earth's radiation budget?

Limited understanding of clouds is the major source of uncertainty in climate sensitivity, but it also contributes substantially to persistent biases in modelled circulation systems.

As one of the main modulators of heating in the atmosphere, clouds control many other aspects of the climate system. Read more in the white paper.

The WCRP Grand Challenge on Clouds, Circulation and Climate Sensitivity is articulated around five main initiatives, complementary and coupled to each other:

Clouds, Circulation and Climate Sensitivity