Watch how America's Houston dealt with flood in comparison to Patna

Bihar Chief Minister Nitish Kumar said, "The change in climate has led to drought, sudden heavy rainfall and the present condition in Bihar. This year in July there were flash floods in 12-13 districts. Later,water level in river Ganga rose. Now,sudden heavy rainfall has flooded many areas in Patna."
He also said, "I am asking in how many parts of the country & across the world, there have been floods? Is water in some parts of Patna the only problem we have? What happened in America?"