Comment by t-3

Hasn't drought in the American west been a constant for at least the past 1500 years? Like, that's the origin story of most of the native groups - "everything died so we traveled through the hellish lands of death until we reached a place with water". Those that lived in the area throughout that time (like my own ancestors) left almost no history for obvious reasons, but it's pretty sure that they lived without most of the trappings of what present-day humans think of as civilization, like fire, clothing, or agriculture.