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  • The long road to a zero-carbon country

    The capital city of San José in Costa Rica is taking steps to become greener and less dependent on cars. By focusing on public transportation initiatives like city bikes and bike lanes, a green esplanade, and an electric passenger train, the city is hoping to reduce its greenhouse gas emissions and help the country reach net zero-carbon by 2050. While the cost of these projects can be pricey, many residents are strong advocates for making the city more sustainable.

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  • 'Cool pavement' experiments help urban planners find ways to ease rising temperatures

    To combat the effects of rising temperatures due to climate change, Los Angeles piloted an experiment called “cool pavements,” where they coat streets with a light-colored sealant to reflect heat. Researchers are studying how effective this method is at reducing the urban heat island effect. Using a mobile sensor station, they found mixed results: While the surface temperature of the road was cooler, a person could feel warmer on the reflective roads. Figuring out how to balance different heat-mitigating strategies could be helpful as cities like Phoenix figure out how to implement cooling infrastructure.

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  • The best trees to reduce air pollution

    New technology is helping urban planners and developers better identify which trees could help cities reduce air pollution. In Ontario, the city of Oakville adopted a new software that resulted in planners halting the planting of one type of tree after learning it had little benefit on the air quality, while another digital tool designed in London is helping citizens determine which plants help remove particulate matter.

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  • How do you build a city for a pandemic? Audio icon

    Major populated cities such as New York and London were once regarded as "death traps," but a series of deadly outbreaks led to structural changes that worked to improve the public health outcomes for those living there. From sewer systems to therapeutic gardens, the health of those living in cities has improved in a variety of ways, however, that has not stopped densely populated areas from turning into hotspots for coronavirus. To address this, local governments are experimenting with even more structural changes such as turning city streets into walking and biking paths.

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  • This tool is helping cities find the neighborhoods most vulnerable to coronavirus

    A new urban planning tool called Urban Footprint is helping governments to map out their most vulnerable neighborhoods and populations. Originally designed in 2018 to help city planners make sense of large data sets and understand the implication of potential policies on traffic, energy use, or multiple other factors, Urban Footprint was easily adapted to pull in data from the CDC and other inputs for COVID-19 considerations.

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  • Pour It On: How Dutch Cities Are Soaking up Rain and Reducing Flooding

    A green roof initiative is one of the projects Rotterdam, a city in the Netherlands, is working on to capture and store more rainwater; a solution that might work in Louisiana. With heavier rains and more intense storms due to climate change in both places, the amount of rainfall coming down can overwhelm drainage systems. Although the price tag can be high to build these green roofs, Rotterdam boasts 100 acres of green roofs that have increased the city’s water storage capacity by about 1.6 million gallons.

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  • 'Visible women': Feminist mappers bridge data gap in urban design

    The underrepresentation of women in technology and computer science has led to the creation of Geochicas, a group of women who recruit and train female, open source mappers across the world. Open source mapping is a male-dominated pursuit but one that informs urban design and public policy. When mapping a city, women tend to add services that are overlooked by men, such as childcare services, hospitals, and women's health clinics. Diversifying the volunteers who do this work to include more women leads to mapping that is more inclusive and minimizes crowdsourced-data bias against women.

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  • What Would a World Without Prisons Look Like?

    Deanna Van Buren and her nonprofit firm Designing Justice/Designing Spaces use architecture to advance social justice and criminal-justice-reform ideas, designing workplaces, meeting places, and homes nationwide founded on the notion of "what a world without prisons could look like." The firm's projects, often planned with input from the people directly affected, have included privacy-enhancing temporary living units for people recently released from prison, a "peacemaking" space in Syracuse, N.Y., and two of the first restorative-justice meeting places for crime victims and those who harmed them.

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  • How The Carbon Disclosure Project Is Fostering Transparency For City-Level Environmental Policy Design

    Collecting data about environmental risks and resiliency projects facilitates investment and funding. The Carbon Disclosure Project’s (CDP) Cities Program and Cities Vulnerability Assessment encourage participating cities to report actions they are taking to address climate risks. CDP then uses the data to help cities invest in socially equitable solutions, advising community level projects through its Matchmaker project. The project has led to results in cities such as Baltimore and Cleveland.

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  • Mountain Towns Face Big-City Traffic. Maybe It's Time for Big-City Transit.

    With rural areas and mountain towns increasingly facing traffic issues during peak outdoor season or other temporary population growth periods, some have modeled responses after urban transit plans. Park City, the host of the Sundance Film Festival offers free buses throughout the weekend to cut back on commuter traffic; other towns have planned shuttle services between towns and dedicated e-bike routes to reduce car usage in their communities.

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