Natural disasters

Over recent months there has been an orchestrated pushback against investors and insurers who integrate the risks of climate change into their business models. That pushback – emanating from Republican-led states – is having an impact on how companies speak publicly. But whether it will affect their efforts to respond to climate change is less clear. The latest targets have been global insurance companies, and their responses offer some insight. Under pressure, several major insurers, including AXA, Allianz, Lloyd’s and Swiss Re, have pulled out of a United Nations-organized alliance committed to a global goal of net-zero emissions by mid-century. There’s a word for companies going quiet in the face of orchestrated attacks: “greenhushing.” But while the insurers’ departures from the alliance might look like a victory for politicians and political donors who want to delay action on climate change, the companies say leaving doesn’t...

When the nation’s No. 1 and No. 4 property and casualty insurance companies – State Farm and Allstate – confirmed that they would stop issuing new home insurance policies in California, it may have been a shock but shouldn’t have been a surprise. It’s a trend Florida and other hurricane- and flood-prone states know well. Insurers have been retreating from high-risk, high-loss markets for years after catastrophic events. Hurricane Andrew’s unprecedented US$16 billion in insured losses across Florida in 1992 set off alarm bells. Multibillion-dollar disasters since then have left several insurers insolvent and pushed many others to reevaluate what they’re willing to insure. I co-direct the Center for Emergency Management and Homeland Security at Arizona State University, where I study disaster losses and manage the Spatial Hazard Events and Losses database (SHELDUS). As losses from natural hazards steadily increase, research shows it’...

After Hurricane Ida hit New Orleans in 2021, Kirt Talamo, a fourth-generation Louisianan, decided it was time to go. He sold his flooded home, purchased his grandmother’s former house on New Orleans’ west bank, which hadn’t flooded, and moved in. It felt good to be back within its familiar walls, but his mind was on the future. “My other house wasn’t supposed to flood, and now insurance costs are going through the roof; it’s bad,” he told us. “I wanted to keep my grandma’s place in the family, but I don’t know how much longer I can stay. I’d love to, but it’s unsustainable.” When hurricanes and other disaster strike, they often trigger presidential disaster declarations, opening the way for large sums of taxpayer money to flow to affected communities. Some of that money will go immediately to help people in need. Some will go to rebuild public infrastructure, like roads and levees. And some of it will...

The official 2023 hurricane season forecasts were just released, and while the Atlantic may see an average storm season this year, a busier-than-normal season is forecast in the eastern Pacific, meaning heightened risks for Mexico and Hawaii. A big reason is El Niño. El Niño typically means trouble for the Pacific and a break for the Atlantic coast and Caribbean. But while this climate phenomenon is highly likely to form this year, it isn’t a certainty before hurricane season ramps up this summer, and that makes it harder to know what might happen. It’s also important to remember that even in quiet years, a single storm can cause enormous destruction. As climate scientists, we study how climate patterns related to the frequency and intensity of hurricanes – information that is used to develop seasonal forecasts. Here is a quick look at how El Niño affects storms and why it tends to cause opposite effects in two basins separated only by a...

When a powerful storm flooded neighborhoods in Fort Lauderdale, Florida, in April with what preliminary reports show was 25 inches of rain in 24 hours, few people were prepared. Even hurricanes rarely drop that much rain in one area that fast. Residents could do little to stop the floodwater as it spread over their yards and into their homes. Studies show that as global temperatures rise, more people will be at risk from such destructive flooding – including in areas far from the coasts that rarely faced extreme flooding in the past. In many of these communities, the people at greatest risk of harm from flash flooding are low-wage workers, older adults and other vulnerable residents who live in low-lying areas and who have few resources to protect their properties and themselves. I study the impact of extreme weather on vulnerable communities as an assistant professor of social work. To limit the damage, communities need to know who is at risk and how they can be better...