Urbanization

Urbanization News -- ScienceDaily Population studies and urbanization. Read scientific research on the effects of urbanization and related research.

  • Life in the city: Living near a forest keeps your amygdala healthier
    on October 18, 2017 at 3:35 pm

    A new study examined the relationship between the availability of nature near city dwellers' homes and their brain health. Its findings are relevant for urban planners among others. […]

  • New Amazon threat? Deforestation from mining
    on October 18, 2017 at 1:02 pm

    Sprawling mining operations in Brazil have caused roughly 10 percent of all Amazon rainforest deforestation between 2005 and 2015 -- much higher than previous estimates -- says the first comprehensive study of mining deforestation in the iconic tropical rainforest. Surprisingly, the majority of mining deforestation (a full 90%) occurred outside the mining leases granted by Brazil's government, the new study finds. […]

  • Study reveals risk factors for substance use problems, as well as resilience
    on October 16, 2017 at 2:28 pm

    A new study explores factors increasing the risk for substance use problems among African-American/Black and Latino adults residing in a high-risk urban community, as well as patterns of resilience. It reveals that serious risk factors are highly prevalent and strongly associated with substance misuse; however, a substantial proportion could be characterized as resilient, and evidenced substance use problems at rates comparable to the general U.S. population. […]

  • Wildlife in the ditches need a detox cure
    on October 13, 2017 at 1:17 pm

    When it's raining on the roads, slops of road dust and contaminants drain into the road trenches. What does it do to wildlife living by the road? […]

  • What is a safe following distance?
    on October 11, 2017 at 2:07 pm

    Confusion over what is a 'safe following distance' has road safety researchers calling for a standardized definition to prevent tailgating. […]

  • Green gentrification can limit the favorable effects of green areas on health
    on October 10, 2017 at 2:58 pm

    A new study suggests that more socially disadvantaged neighbors do not benefit equally from the effects newly created green areas have on health. Scientists consider that greener cities are not healthier and more equal for everyone. […]

  • Road pricing most effective in reducing vehicle emissions
    on October 5, 2017 at 6:17 pm

    For decades municipal and regional governments have used various traffic management strategies to reduce vehicle emissions, alongside advancements like cleaner fuel and greener cars. But not all traffic management strategies are created equal, says transportation experts. After reviewing more than 60 studies on the subject, scientists have concluded that road pricing -- or pay per use -- is the most effective strategy to reduce emissions and traffic. […]

  • Citizen science can predict butterfly population trends
    on September 27, 2017 at 4:36 pm

    New research shows that citizen scientists can play a role in gathering meaningful information to inform long-term monitoring of biodiversity trends such as butterfly population change. […]

  • Monetizing time savings makes toll roads financially stack up
    on September 27, 2017 at 1:34 pm

    Putting a dollar value on the savings from traffic congestion, noise and air pollution as a result of toll roads and tunnels will make large infrastructure projects more cost effective, according to a new study. […]

  • When residents take charge of their rainforests, fewer trees die
    on September 20, 2017 at 10:21 pm

    When the government gives citizens a personal stake in forested land, trees don't disappear as quickly and environmental harm slows down, research finds. […]

  • 300,000 families living in US-Mexico border towns face exposure to toxic stress
    on September 15, 2017 at 1:52 pm

    Roughly 300,000 Texans living in impoverished border communities known as 'colonias' are facing substandard housing, lack of resources and exposure to toxic stress. New research finds these communities are also ill-equipped to face a natural disaster. […]

  • New Orleans greenery post-Katrina reflects social demographics more than hurricane impact
    on September 15, 2017 at 1:51 pm

    Popular portrayals of "nature reclaiming civilization" in flood-damaged New Orleans, Louisianna, neighborhoods romanticize an urban ecology shaped by policy-driven socioecological disparities in redevelopment investment, ecologists argue. […]

  • 'Keep it local' approach more effective than government schemes at protecting rainforest
    on September 12, 2017 at 1:31 pm

    Conservation initiatives led by local and indigenous groups can be just as effective as schemes led by government, according to new research. In some cases in the Amazon rainforest, grassroots initiatives can be even more effective at protecting this vital ecosystem. […]

  • What happens to Rex and Kitty after a natural disaster?
    on September 11, 2017 at 7:42 pm

    After a natural disaster, images of destruction pour into our newsfeeds. Most of these focus on the destruction of the landscape, or on the human suffering caused. In any disaster where people suffer and die, pets and livestock will suffer and die, too. This has grave consequences for the animals, of course, but also for their owners. The aftermath of Hurricane Katrina was particularly devastating. The Louisiana SPCA estimates that 15,500 animals required rescue, and that 80–85 percent of these animals were never reunited with their owners. […]

  • Urban climate change
    on September 11, 2017 at 7:09 pm

    Southern cities such as Houston and Tampa -- which faced the wrath of hurricanes Harvey and Irma, respectively -- may not be the only urban environments vulnerable to extreme weather. Northern cities also face the potential for flooding as global temperatures continue to warm. […]

  • Jordan faces likelihood of much more frequent long and severe droughts
    on August 31, 2017 at 12:21 am

    Jordan is among the world's most water-poor nations, and a new, comprehensive analysis of regional drought and land-use changes in upstream Syria suggests the conditions could get significantly worse. […]

  • After Hurricane Katrina, personal debt fell for those worst hit, but at a cost
    on August 28, 2017 at 1:37 pm

    After Hurricane Katrina devastated New Orleans a dozen years ago, there was a sharp and immediate drop in personal debt among residents living in city's most flooded blocks, according to a new study. […]

  • High-resolution modeling assesses impact of cities on river ecosystems
    on August 23, 2017 at 10:43 pm

    New mapping methods can help urban planners minimize the environmental impacts of cities' water and energy demands on surrounding stream ecologies. […]

  • What's the annual value of trees? $500 million per megacity, study says
    on August 22, 2017 at 2:48 pm

    In the megacities that are home to nearly 10 percent of the world's 7.5 billion people, trees provide each city with more than $500 million each year in services that make urban environments cleaner, more affordable and more pleasant places to live. […]

  • Targeted forest regeneration: A blueprint for conserving tropical biological diversity?
    on August 22, 2017 at 1:24 pm

    Targeted forest regeneration among the largest and closest forest fragments in the Eastern Arc Mountains of Tanzania and the Atlantic Forest of Brazil can dramatically reduce extinction rates of bird species over time, new research shows. […]

  • Higher rural suicide rates driven by use of guns
    on August 17, 2017 at 8:20 pm

    Suicide rates in rural areas of Maryland are 35-percent higher than in the state's urban settings, a disparity that can be attributed to the significantly greater use of firearms in rural settings, according to new research. […]

  • Understanding alternative reasons for denying climate change could help bridge divide
    on August 15, 2017 at 1:50 pm

    Scientists have explored alternative reasons for climate change denial, specifically economic, social or cultural influences on why individuals or entire communities remain skeptical of climate change. […]

  • Environmental policy, pollution and economic growth
    on August 9, 2017 at 6:20 pm

    Air pollution policy reduces the extent to which population growth in metropolitan areas results in increased pollution emissions without disrupting the economic growth from this urbanization, new research shows. […]

  • Prairie-chicken nests appear unaffected by wind energy facility
    on August 9, 2017 at 11:33 am

    Wind energy development in the Great Plains is increasing, spurring concern about its potential effects on grassland birds, the most rapidly declining avian group in North America. However, a new study suggests that for one grassland bird species of concern -- the greater prairie-chicken -- wind energy infrastructure has little to no effect on nesting. Instead, roads and livestock grazing remain the most significant threats to its successful reproduction. […]

  • Desert tortoises can't take the heat of roadside fencing
    on August 5, 2017 at 6:24 pm

    Desert tortoises pace back and forth and can overheat by roadside fencing meant to help them, according to a study new study. […]

  • Why is conducting research in some countries so difficult?
    on August 4, 2017 at 4:40 pm

    Low- and middle-income countries such as Brazil face a lack of epidemiological data, and one of the key priorities for researchers is developing high-quality surveys. Investigators have now studied the difficulties in conducting a longitudinal epidemiological survey in a school-based sample in Brazil. […]

  • Scientists link biodiversity genomics with museum wisdom through new public database
    on August 3, 2017 at 6:11 pm

    A new publicly available database will catalog metadata associated with biologic samples, making it easier for researchers to share and reuse genetic data for environmental and ecological analyses. It links publicly available genetic data to records of where and when samples were collected. Such information is critical for comparing biodiversity in different locations worldwide, across time. Despite calls for more data sharing within the research community, researchers have until now lacked the tools they needed. […]

  • Vertical axis wind turbines can offer cheaper electricity for urban and suburban areas
    on August 3, 2017 at 2:31 pm

    Small vertical axis wind turbines (VAWTs) possess the ability to effectively operate in the presence of high turbulent flow, which makes them ideal energy harvesting devices in urban and suburban environments. In a new article, researchers present results indicating that an optimally designed VAWT system can financially compete with fossil-fuel based power plants in urban and suburban areas, and even spearhead the development of a net-zero energy building or city. […]

  • Dramatic changes needed in farming practices to keep pace with climate change
    on August 3, 2017 at 1:59 pm

    Researchers investigating nutrients in runoff from agricultural land warn that phosphorus losses will increase, due to climate change, unless this is mitigated by making major changes to agricultural practices. […]

  • Students at two-year colleges and vocational schools more likely to be hungry
    on August 2, 2017 at 3:05 pm

    For the majority of college students, having enough food is not on the list of challenges they face in their education. However, a recent study shows that, for students in two-year colleges and vocational schools, hunger is definitely one of the problems they face and can impede their ability to succeed in college. […]