In a Conversation article about Jennifer Marohasy's claim of temp fudging at Australia's Bureau of Meteorology (BoM) (1,2,3) authors Lisa Alexander and Andy Pitman claim that BoM's homogenisation adjustments are to reduce the extremes of Australia's temperature trend.
Exactly what "reduce the extreme temp trends" means is not 100% clear, but I assume it means that the slight increase in temp from 1910 to 2014 is lessened post-homogenisation.
