Can we design neighborhoods to survive wildfires?

New York City suffered from fires that erupted in overcrowded, run-down apartments. Then the city sleuthed through residential records and found that landlords who foreclosed let their properties fall apart and ignored safety-code violations. Greater Toronto wants to expand upon New York City’s method by using transportation surveys, census data and computer data to build transit lines.

After the 2018 Camp Fire that tore through the town of Paradise, California, local residents are starting to rebuild. As of April, the town issued nearly 1,500 building permits. They’re also implementing a plan to remove trees that pose a safety concern for residents, which has been an extensive coordination effort between federal, state, and local government officials. Housing prices in the area have increased significantly making it difficult for some people to rebuild, but some organizations are working to help those that want to return to the area.

In and around Los Angeles, firefighters have been able to better respond to wildfires because of better equipment and more personnel. With more off-road trucks, fire helicopters, fire engines, and a new supercomputer system, the fires of 2019 have had less of an impact than in past years. But without a formal analysis – including one that takes into consideration external factors like socioeconomic status – it’s hard to concretely understand why there’s been less damage.

The Elide Fire Ball is an orb filled with fire suppressant designed to explode in seconds when it comes into contact with fire. Fire balls are easy to use, can be used preventatively by placing them where fires might break out, and do not have to be maintained and tested like traditional fire extinguishers.

After a wildfire in 2010 burned 15,000 acres outside Flagstaff, triggering evacuations and a fatal landslide, voters approved a $10 million bond issue to transform the local fire department and fire-prevention practices. Part 4 of a package of stories on rampant homebuilding in wildfire-prone forests (starts at 35:25) tells how firefighters spend most of their time cutting trees to thin the forest to mimic its pre-settlement form, when periodic fires were a normal and small-scale threat. Suppressing all fires, letting forests thicken, and building homes in them calls for a new prevention ethos.

Bangladesh, whose garment industry is second only to China’s in size, is responding to both international and domestic pressure and undergoing the most radical revamping of worker safety it has ever seen, in large part due to consumer and client pressure.

The Mahila Housing Trust initiative and the social impact agency Purpose are raising awareness of the dangerous air pollution women are exposed to when working in construction in Delhi. They’re working with locals to educate the public, encourage mask-wearing, and teach women to use air-quality monitors and report issues on an app.

Advances in meteorological technology have helped drive down the fatality rate from tornadoes in the U.S. to a fraction of what it was a century ago. Violent tornadoes rarely evade advance detection, thanks to weather satellites, advances in radar, and a communication system to announce warnings. The deadly tornadoes that struck Kentucky and other states in December 2021 illustrate the ways in which even this system – one scientist called it "one of the most incredible success stories in applied science" – can fail, including when people ignore warnings or buildings cannot withstand the high winds.

Snowsheds are just one tool in Canada’s arsenal to combat the impacts avalanches can have on their complex road systems. Snowsheds are aboveground tunnels where snow can travel over it and into the river, thereby reducing the number of road closures to cleanup the aftermath and allowing thousands of drivers to continue on their journeys. This idea is being explored by state officials in Wyoming as a way to improve their avalanche-mitigation tactics.

A failed bridge construction project in the 1960s in Wyoming to mitigate the impacts of avalanches inspired Washington state to complete a similar project fifty years later. The project included an elevated bridge that allows snow from slide paths to pass beneath the roadway, which ends up saving losses of economic activity due to road closures. While the construction can be expensive, Wyoming is looking to see if a similar solution can be applied to their own mountain passes.