Both studies computer modeled.
Saudi men cross on foot a flooded street following heavy rain in Jeddah. Ten people have been killed and three others gone missing in three days of flooding due to heavy rains in the Red Sea city of Jeddah. (AFP/Amer Hilabi)
A woman wades across a flooded area of Jardim Itaim neighbourhood, eastern outskirts of Sao Paulo, Brazil, on January 2011. Global warming driven by human activity boosted the intensity of rain, snow and consequent flooding in the northern hemisphere over the last half of the 20th century, research released Wednesday has shown. (AFP/File/Mauricio Lima)
Weather patterns shift. Weather patterns change.
Three to six thousand years ago the Sahara desert was green and wet.
Was that a bad thing?
Would it be bad if that returned?