A pollution solution where the rubber meets the road

Sweden's "Vision Zero" program has used a comprehensive approach to infrastructure and regulation to drastically reduce traffic-related deaths, making Swedish roads the safest in the world.

Raton, a town once surrounded by eight coal mines, now has a main street of boarded-up buildings. There is reason for optimism as the town diversifies its local economy, betting on "a mix of small manufacturing businesses, health care and specialty services, and hospitality for travelers" to endure the sudden decline in mining revenue. Its calculated revitalization may hold lessons for other towns.

Kathmandu is one of the most polluted countries in the world--a title once caused by the excess smoke produced by brick creation in the city. However, after a 2015 earthquake destroyed much of the old technology used to fuel the brick industry, leaders took to leveraging updated technology with an increase in energy and production efficiency.

U.S. Highway 97 is one of the highest travelled roads through Washington, but it is also one of the most dangerous due to wildlife crossings. Taking note of successful initiatives in other states and countries, Washington is making moves to implement underpasses which will reduce the rate of accidents and cut down on medical and vehicular collision costs.

In California’s wildfire-prone Sierras, forest managers are turning to an ancient, if not quite intuitive, tool: more fire. In 2019, the Forest Service will manage 250,000 acres with controlled burns and “mechanical thinning,” using equipment to take out small trees. Though such plans face some hurdles, states across the country are adopting them, reducing wildfire severity while often benefiting ecosystems.

Official in Bangkok, Thailand unleashed a small fleet of drones to deal with the hazardous levels of air pollution plaguing the city. The drones were outfitted with canisters capable of spraying water and a "non-hazardous chemical spray." The pilot project successfully reduced air pollution by small amounts.

By running a network of 3-D printers, universities like USC and UCLA Extension, as well as volunteer firms and nonprofits mobilize their resources to create backup masks. The masks are more effective than basic disposable surgical masks, and serve as reserves for hospitals in the region. The network operates with the assistance of the Los Angeles Mayor’s office.

To replace lost business and keep their employees on staff, Tasmanian businesses quickly diversified into new product lines to meet COVID-19-related demand. A camera accessories firm that saw nearly all of its sales to the film and TV industries dry up became a manufacturer of face shields. A plastic manufacturer increased its business by turning out acrylic counter-top protective screens. And a whiskey distillery began producing 2,000 liters of hand sanitizer per week.

After being known as a polluted mining town, politicians, scientists, industry officials, and residents of Sudbury, Ontario, were able to come together to restore its land. After 40 years and $33.5 million, they are about halfway through recovering about 200,000 acres of land. So far, they’ve been successful at restoring air quality, neutralizing soil to allow for replanting, and restocking lakes with fish. While some locals think the mining companies should have done more, the collaborative spirit could be a model for other communities looking to improve the environment.

London charges higher-emission vehicles every day they enter the city center, called the Ultra Low Emission Zone, on top of the already existing London Congestion Charge for non-electric vehicles to enter the zone. Since the charges were implemented, the city has seen an increase in electric vehicle adoption and improved air quality.