Paragraph 2
Scientists say
air is lighter than dry
at the
temperature and
. This is called the vapour buoyancy effect. Cooler air containing water droplets rises to form clouds and
. Rain has a cooling effect in tropical areas. More
is needed to find out the effects rising cool air has on limiting global
. A researcher said: "Now that we understand how the
of water regulates tropical climate, we plan to study
global climate models accurately represent this
."
