American Migration Patterns Send Millions Into 'Disaster Zones'

When Hurricane Helene drove through the US Southeast late last month, it struck major population centers, as well as towns and villages in the North Carolina mountains, absolutely devastating some of them. Some of those communities are far more populated than they were a generation ago. That’s because millions of Americans have migrated into so-called “disaster zones,” according to a New York Times analysis.

“The country’s vast population shift has left more people exposed to the risk of natural hazards and dangerous heat at a time when climate change is amplifying many weather extremes,” the Times wrote.

For example, Florida’s coastal cities, which are highly vulnerable to hurricanes from the Atlantic Ocean and Gulf of Mexico, have added millions of new residents in recent years. Phoenix is one of the country’s fastest-growing urban regions, but this summer, it saw 100 straight days when temperatures soared over 100 degrees Fahrenheit. Thousands have moved into the northern California foothills, where wildfires have become more frequent and intense. And the Houston suburbs have grown immensely in recent years. That’s where Hurricane Beryl knocked out power to millions amid a heat wave this summer.

Besides that, an outward growth of population and development, away from inner cities and into suburbs and farther-out “exurbs”, has increased human exposure to natural hazards like tornadoes and wildfires. It’s also made hurricanes more likely to strike higher-density zones — a trend that experts call “the expanding bull’s-eye effect.”

“The more that people are moving into areas exposed to hazards,” Jeffrey Schlegelmilch, director of the National Center for Disaster Preparedness at Columbia’s Climate School, told the Times, “the more that these hazards can turn into disasters of larger and larger scale.”

Reflect: How do you think your community might change in the next ten years due to things like weather and population growth?

Photo of the aftermath of Hurricane Helene from Reuters.