Workers attempt to remove a tree from a

Workers attempt to remove a tree from a flooded area at Marginal Tiete highway during a heavy rain, in northern Sao Paulo, Brazil, on December 8, 2009. Hours of non-stop rain caused at least four deaths and brought traffic on key cross-city roads to a standstill in Sao Paulo, with 120 kilometers (80 miles) in total of stopped traffic in the city. Vehicles were brought to a standstill on the Marginal highways that serve as the main north-south and east-west thoroughfares in Sao Paulo because of flooding from the adjacent Tiete and Pinheiros Rivers. AFP PHOTO/Mauricio LIMA (Photo credit should read MAURICIO LIMA/AFP via Getty Images)