the region's "intense drought... has expanded and strengthened since the earliest stages of the 2015 –2016 agricultural season, driven by one of the strongest El Nino events of the last 50 years " recommendations and solutions​

Most of the land is used for housing/commercial uses

The answer is a for sure

The first immigrants to settle in what is now the united states were the ancient ancestors of modern native americans. the precise routes of those first north american immigrants are disputed, but there is no uncertainty about the fact that every human being on the continent is either a recent immigrant or a descendant of earlier immigrants. since the first immigrants came here from asia more than thirteen thousand years ago, there have been four large and easily recognizable modern waves of immigrants into the united states.