Moving Toward Drought

From a Brookings blog on population growth centered around drought prone areas:

"The largest population gains have often been concentrated in the driest counties overall.  For example, of the 10 counties where population has increased the most since 2000, seven are currently in the midst of a drought. Los Angeles County and Riverside County, whose combined population climbed by almost 1.6 million over this span, are confronting some of the most exceptional drought conditions nationally, followed closely by San Diego County and Maricopa County, near Phoenix. Meanwhile, several rapidly growing, low-lying areas in Texas face the opposite problem of flooding, including Harris County, near Houston, which has added nearly 1.1 million residents since 2000."