How have centers of population shifted in the united states in the past 50 years ?

Since President Lyndon B. Johnson launched the War on Poverty 50 years ago, the characteristics of the nation’s poor have changed: A larger share of poor Americans today are in their prime working years and fewer are elderly. In addition, those in poverty are disproportionately children and people of any age who are black, Hispanic or both.

Answeris associated with sunny,dry weather;