Foolish to rebuild in extreme conditions?

Dear EarthTalk: Isn’t it foolish to rebuild millions of homes in areas ravaged by floods or wildfires given the likelihood that this extreme weather will keep occurring? — Mike Aspen, Baltimore, MD

In recent years, the continued global prevalence of climate change has increased the number of weather-related catastrophes. In fact, eight of California’s 10 largest wildfires have occurred in the past five years, resulting not only in the loss of lives but also significant property damage. Due to this repeated phenomenon, many climate experts suggest that towns at a high risk of weather-related catastrophes should be abandoned, not rebuilt. Financial, logistical and safety factors indicate that rebuilding in low-hazard areas can be significantly more beneficial than rebuilding in high-hazard areas.

Building new homes in areas at high risk of flood or wildfire contributes up to $3 billion to disaster-related costs annually. At the current rate, experts predict that some 220,000 homes could be built in locations exposed to high wildfire hazards by 2030, making for unprecedented financial loss from property damage. In the case of Greenville, California, for instance, rebuilding is predicted to cost around $1 billion, yet most residents do not plan to return, largely because experts think the area could be destroyed again in the next 30 years. “Governments can save billions of dollars each year and keep people safe from disasters by building just a small percentage of new homes away from the highest-risk areas for wildfires and floods,” says Ryan Ness, Director of Adaptation at the Canadian Climate Institute.

To make matters worse, the use of fire-resistant material to rebuild is costly and thus not required by law, leading to increased risk. Though urban planners stress the need for fire-resistant design, officials often push for rapid reconstruction, thus waiving environmental permits and zoning regulations.

Beyond the lack of fire-resistant material, the location of rebuilt homes increases the dangers that residents face as the frequency of weather-related disasters such as droughts, floods and wildfires has increased fivefold since 1970 and have led to the deaths of 2 million people globally. Furthermore, wildfires do not just destroy homes—they degrade air quality, water supply and forests, causing permanent detrimental effects.

The Canadian Climate Institute recommends building housing and infrastructure in low-hazard areas, moving away from high-risk zones. Another recommendation is to create, maintain, and make publicly available maps that show where hazardous areas are to warn potential residents. Moreover, the Institute also suggested reforming disaster assistance programs as a way to deter risky urban development.

EarthTalk® is produced by Roddy Scheer & Doug Moss for the 501(c)3 nonprofit EarthTalk.

The views expressed here are not necessarily those of The Lakeville Journal and The Journal does not support or oppose candidates for public office.

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