California Insurance Exodus and the Worst Drought in 1,200 Years

The US Southwest megadrought and the insurance exodus

The megadrought gripping the US Southwest has lasted 23 years and, according to cited reconstructions, is the worst in the last 1,200 years. California faces an exodus of insurers amid warming and rising costs, with this flight presented as another climate bill.

The megadrought is defined as a continuous climate crisis for natural ecosystems, agricultural systems, and human water resources. Researchers admit limited understanding but warn such events will become more frequent and severe if greenhouse gas emissions are not drastically reduced. The recurring formulation in reports: “Historically, they are very rare, but they will become more frequent and severe in the future.”

How long has the US Southwest megadrought lasted?

The episode began over two decades ago and has shown no respite. The increasingly dry atmosphere is the subject of study by the University of West Virginia (WVU), working with observations from existing instrument station networks across the region. The framework is not exclusively American: Spain is the second country with the most water stress in Europe and 75% of its territory is at risk of desertification.

The insurance flight is framed, according to cited reports, in a scenario of warming and rising costs. The debate emphasizes that no company abandons a market for a single variable.

How droughts are reconstructed without thermometers or writing

The most repeated objection points to who recorded rainfall 1,200 years ago. The standard answer is dendrochronology: the width of annual tree rings reflects water availability during the growing season, with wide rings indicating wet years and narrow ones, dry years. There are specimens 5,000, 4,000, and 3,000 years old allowing long record reconstruction, and some add indirect evidence methods as a complement.

The reasonable skeptic has serious counterarguments. Work is done with ranges and margins of error, not exact measures: if today we speak of the worst drought in 1,200 years, was there a worse one 1,300 years ago? It is also argued that these models abound in arbitrary coefficients, to the point that the chosen coefficients end up determining the result. And if there is only one payer—public—the suspicion that the conclusion is fixed first and then the parameters does not dissolve itself.

One participant adds the human thermometer timescale: 1,000 years ago Vikings planted barley in Greenland and left farming tools and stores; today that same land does not yield barley. According to this argument, the climate changed without anyone burning a barrel of oil.

Insurance flight in California: climate or bottom line?

The thread argues that no company abandons a market for a single variable and that high inflation, tax hikes, reinsurance barriers, and general impoverishment suffice to make operating profitably in a territory exposed to fires and droughts unviable. For those defending this thesis, reducing everything to natural disaster recalls closing a music festival attributed to piracy when behind it was a real estate operation. It is also added that insurance rarely covers natural disasters in the way the public imagines.

One participant brings the 1930s episode as a contrast. In the midst of the Dust Bowl, three million people left their farms and mortality is spoken of up to 5 million. According to his reading, that was not anthropogenic climate change, but a normal drought, while the current one is presented as mega.

Record storms in the state that is drying out

The same California that is the protagonist of the alarm broke rainfall records. Recent storms recovered historical precipitation records and raised the snowpack, according to the US meteorological service, in a turn published a month before the version of the unstoppable drought became popular. A Galician participant states that he rarely saw it rain as much that year.

The thread explains that the rainfall pattern moves, it does not disappear. The planet’s water is constant; precipitation is not. A warmer atmosphere should produce more precipitation, and it seems to be doing so, but it may redistribute it. ENSO adds noise: an intense El Niño that is weakening and a La Niña on the way. Nevertheless, the global monthly temperature record was broken at 1.05 degrees, after a 0.93 the previous month.

Drones over clouds and water that is sold

While the diagnosis is discussed, some are already intervening in the mechanism. In the United Arab Emirates, drones are used to release electrical charges in clouds that help droplets merge and precipitate, a system associated with Professor Maarten Ambaum of the University of Reading and collected in Wikipedia since 2021. The same country suffered floods that saturated its drainage systems.

The thread jokes that in Castile and León they sell water to the thirsty.

One participant poses the paradox: if the current drought is measured against another from 1,200 years ago and both are labeled atypical, the reference withstands poorly the weight thrown on it.