Source: data from the Giss surface
stations database
As one can see, the area with the
highest load of aerosols (South India in the NH) has a higher increase
in temperature than the only station in the SH near India (Diego
Garcia). This contradicts the measurements of the Indoex experiment (-5
W/m2 at the top of the atmosphere), which expects a large cooling
effect
of aerosols in the NH. But as soot is a large part of the aerosols in
India, the net result at the surface may be warming. That is also
confirmed by the heat content of the Indian Ocean, which has a higher
increase in the NH than in the SH.
On the net: 8 July, 2005.
Last update: 6 August, 2007.
To the 
To the climate change page