A very new report in Science demonstrates that drought is too light a word to describe the past 20 years in a huge area of the Unites States. It is the worst in the past 700 years.
Past megadroughts like that one in the 1500s and an even worse one in 800 BCE were due to natural variations. This one is definitely due to human activity.
Just another warning sign that we are on the slippery slope of extinction. Maybe people living in the USA will take account of such facts next November, when they have an opportunity to get rid of Trump and his enablers?