Articles tagged with Urbanization
Researchers found that anti-flooding infrastructure can sometimes make floods worse, especially during lighter rain. The study used computer simulations to analyze the impact of modern terrain modifications on flood hazards and exposure.
A recent study by Emory University researchers analyzed socio-economic data and environmental indicators in Portland, Oregon, to understand current urban patterns of privilege and disadvantage. The study found that redlining, while a significant factor, is not the only contributor to urban inequality, and that gentrification and displa...
A US study found that affluent neighborhoods are at higher risk of fire, but tend to recover faster, with 78% of severely burned areas failing to return to pre-fire temperatures within five years. Higher-income areas also experienced smaller losses in vegetation and recovered temperatures more quickly.
A new PNAS special feature examines how segregation shapes environmental risks and benefits in cities, including access to water, safety from floods, and exposure to extreme heat. The authors argue that understanding segregation as a social-ecological system can help break cycles and build more equitable cities.
A new study has calculated the weight of 606 million buildings globally, revealing patterns in material-use efficiency across cities. Cities with dense, uniformly short buildings maximize floor space per person while minimizing materials used.
A new Cochrane map has identified significant gaps in dengue prevention research, with most studies lacking synthesis into reliable reviews that policymakers can use. The map highlights areas such as vaccine implementation, adult mosquito control, and environmental interventions, which require more evidence to inform effective dengue c...
Research at Kyoto University's gardens revealed seven species of frog and one species of newt, highlighting the importance of culturally managed water features as habitats for urban amphibians. The study's findings emphasize the need to consider these sites as biodiversity hotspots, promoting coexistence with nature.
Researchers found that preserving native vegetation and tree cover between homes led to a wider variety of bird species remaining, particularly sensitive species like the Wilson's warbler and Swainson's thrush. This suggests that balancing human development with ecosystem health can benefit both.
A Northwestern University study found that areas with shrinking tree canopy cover experience higher mortality rates, particularly in hot neighborhoods. Protecting mature trees alongside planting new ones is crucial for reducing health risks and strengthening climate resilience.
A study by Osaka Metropolitan University found that neighborhoods with stronger senses of safety tend to have longer sleep durations, while highly walkable streetscapes are associated with shortened sleep duration. Greenery and high enclosure are also linked to longer sleep and reduced insomnia symptoms.
Researchers from the University of East Anglia examine how heat and daylight patterns transform urban life, highlighting unequal impacts on social groups. They emphasize the need for urban planning to consider bodily and temporal perspectives, integrating social justice considerations into climate adaptation efforts.
Researchers found that geography and community affiliation explain more variation in gut microbiome composition than urban lifestyle. Urbanization consistently influences the gut microbiome, but the magnitude and nature of changes differ among communities, reflecting differences in local diets, environments, and cultural practices.
A new study suggests that future mobility infrastructure can be designed to minimize resource use and carbon emissions. By combining high-resolution global infrastructure mapping with integrated assessment frameworks, researchers found that optimizing infrastructure and production technologies can cut embodied emissions by up to 63%. T...
A new study finds that cities with slower urban development tend to maintain plant communities and their climate benefits, while faster-developing cities experience declining productivity. The researchers hope their findings will inform urban development strategies to maximize plant growth.
A new study estimates that by 2100, only 38% of the world's population will live in large cities, with 450 million fewer people projected to reside in cities over a century than current trends suggest. Urban growth slows as countries urbanize, with smaller cities growing faster than larger ones initially.
Research from the University of Texas at Austin finds that foreign investment drove up US housing costs, outpacing supply growth. Cities with lax regulations on foreign investors saw prices rise more quickly than in areas with stricter controls.
Research found a 27% decline in wading bird populations in the NYC Harbor over 22 years. The Black-crowned Night Heron population declined by 55%, threatening its status as an environmental indicator species.
Research in Singapore finds that households relying heavily on air-conditioning are less likely to adopt energy-saving habits and support collective climate action. The study highlights the need for city-scale heat mitigation strategies alongside individual adaptation.
A new study found that urbanization-related changes in the song of European songbirds can have important consequences for birds living in noisy cities. While some species exhibit a broader dominant frequency range in their songs, others do not adapt to urban environments.
A global meta-analysis of animal behavior found that urban populations exhibit heightened boldness, aggression, exploration, and activity compared to rural counterparts. The findings highlight the need for urban planners to consider animal behavior in urban development.
A year-long study of NYC's East River used environmental DNA to reveal insights into urban wildlife activity, human food consumption and ecosystem health. The findings suggest that urban waterways can become continuous biosensors tracking biodiversity and habitat restoration outcomes.
A new framework proposes a continuum of urbanity, challenging traditional thinking about urban and rural spaces. The study explores how urban, rural, and wild features are interconnected, affecting livelihoods, ecosystems, and human well-being in the Mid-Hudson Valley region.
A new study by Florida Atlantic University researchers highlights the role of urban planning in increasing pedestrian and bicyclist fatalities in the US. The study reveals that everyday destinations like grocery stores and pharmacies along busy roads significantly increase risk of serious injury or death.
A recent study found that children from rural China are more prone to emotional issues, while urban children show more behavioral problems. These findings highlight the need for targeted interventions and underscore the impact of environment on mental health outcomes.
The book analyzes Jakarta through the lens of post-suburbanization, highlighting how rapid expansion, infrastructure politics, spatial fragmentation, and socio-environmental challenges shape its growth. The volume provides a comprehensive English-language analysis of Jakarta's contemporary urban evolution.
A new study by Hashem Akbari offers a simplified way to calculate the climate impact of reflective surfaces, allowing policy practitioners to view problems on a regional basis. Increasing albedo by 0.01 can offset about 1.8 to 2 kilograms of CO₂ per square metre globally, with some regions reaching up to 5 kilograms.
A new study by MIT researchers provides a high-resolution picture of auto emissions in NYC, allowing for more effective transportation and decarbonization policies. The method produces detailed data that bridges the gap between citywide emissions inventories and individual vehicle analyses.
A review by an international team of researchers highlights that air monitoring is essential for global public health strategies, as airborne antibiotic resistance genes can spread silently between humans, animals, and the environment.
A new generative AI framework predicts future urban layouts considering multiple factors. The Memory-aware Multi-Conditional generation Network (MMCN) offers a novel approach to modeling complex urban evolution, providing a powerful tool for sustainable urban development.
A new study finds that contributions from casual and highly active citizen scientists are equally valuable, with each group complementing the other. The research, led by Erin Grady, analyzed millions of observations on iNaturalist and found that both groups contribute to balancing biases in data collection.
Urban parks exhibit enhanced microbial activity and nutrient-cycling capacity, but with smaller genomes and reduced evolutionary potential. This 'function–evolution trade-off' highlights the need for urban green space planning that balances short-term ecological function with long-term microbial diversity and resilience.
A study in Barcelona found that pedestrianisation reduces noise levels by 3.1 dB, exceeding WHO guidelines, but finds no impact from pedestrian activity, which takes over acoustical space previously dominated by motorised traffic.
A new study reveals disparities in urban shade levels, leading to greater health risks and exacerbating the 'heat island' effect in cities. Wealthier neighborhoods tend to have more trees, resulting in better shade provision for pedestrians, highlighting a consistent link between wealth and neighborhood tree abundance.
A Canada-wide study using DNA metabarcoding reveals the intricate relationships between cavity-nesting bees and wasps and their food sources. The project, involving over 5000 students, creates detailed maps of these interactions, providing valuable insights into biodiversity and conservation.
The URBANK database aggregates and analyzes urban data to overcome fragmentation and variability in archaeological record. It offers a multidisciplinary platform for studying cities as dynamic networks of connected elements.
A new model maps foot traffic in New York City, providing insights into pedestrian activity and hazard locations. The study reveals high densities of foot traffic outside Manhattan, with many streets having similar foot-traffic levels to Manhattan's busiest areas.
Urbanization may be shaping the spotted lanternfly's spread into new environments by allowing them to adapt to heat, pollution, and pesticides. The insects' genetic diversity is lower in the US compared to China, but they are still adapting to local climate conditions.
A research team from Osaka Metropolitan University found that optimizing window-to-wall ratio and insulation can reduce energy consumption by up to 27% in subtropical regions. The study provides tailored design guidelines for each climate zone, promoting net-zero energy housing and climate adaptation policies.
A new study shows that China can significantly limit its cooling-related climate impacts by transitioning to cleaner refrigerants and adopting high-efficiency cooling technologies. This integrated approach could phase down cumulative HFC consumption by 12.6 Gt CO2e from 2022 to 2060, avoiding up to 0.015°C of global warming.
Cities need clear limits on urban sprawl to achieve sustainability. A new Concordia study proposes combining greenbelts with densification policies to limit sprawl and promote sustainable development. The study found that without additional policies, greenbelts alone are insufficient to halt urban sprawl.
A new study by MIT researchers reveals that cities with strong airline connections are more likely to attract multinational firms, particularly in knowledge industries. The study analyzed 7.5 million firms in 800 cities and found that direct flights lead to a 20% increase in subsidiaries, compared to cities with only one-stop connections.
A study analyzing over 100 cities in Asia, Africa, and Latin America found that compact urban planning is crucial for delivering water and sanitation to growing populations. The research suggests that if cities spread outward rather than building more densely, access to clean water and basic sanitation could be significantly impacted.
Over half of global coastal settlements have retreated from the coast over the past 30 years in response to intensifying climate hazards. Coastal regions in Africa and Oceania lead the retreat, while poorer regions often expand shoreline settlements due to economic needs.
Researchers found that a plant species adapted to urban conditions exhibited inheritable characteristics, such as changes in size and flowering periods, within 60 years of urbanization. Elevated ground temperatures and reduced soil acidity drove these differences.
Researchers investigate how adjacent cities exacerbate each other's heat island effects. A study also highlights the need for improved hindcasting infrastructure in climate science. Additionally, a campaign monitors pinned clouds over industrial sources of heat and finds that trees are more reliable against heat stress than buildings.
A new study of 1960s maps created by young people has provided important insights into the timing and extent of habitat losses in England and Wales. The analysis revealed a significant decline in semi-natural habitats, including rough grassland, heath, and wetland, which have lost 42% of their original area over the past 90 years.
Shared houses in Tokyo are marketed as lifestyle-driven homes focusing on comfort, connection, and personal growth. The study reveals that properties near train stations emphasize accessibility and neighborhood convenience, while those farther away highlight natural surroundings and social interaction.
A study conducted by Brazilian and Uruguayan researchers found that urbanization leads to a decline in biodiversity, with beachgoers being the most impactful factor. The loss of dunes also makes coastal cities more susceptible to sea level rise, threatening homes and ecosystems.
Research by Kobe University entomologist SAGA Tatsuya found that two hornet species divide their prey by specializing on different targets. The Japanese yellow hornet eats soft-bodied prey like crickets and moths, while the yellow-vented hornet consumes low-value prey such as beetles and wasps.
Minimum lot size regulations can cause racial segregation through both economic and voluntary choices, according to new research. Households with higher incomes are more willing to pay for larger lots, while Black households show a lower willingness to pay, highlighting a racial preference effect.
A new study reveals that middle-class Mancunians, including doctors and engineers, lived alongside working-class residents in the same buildings and streets. The research found that over 60% of buildings housing wealthy occupational classes also housed unskilled laborers.
A study found that longer commutes and smaller living spaces are associated with poor sleep health among Tokyo residents. Housing choices that balance location and size may help improve sleep health, according to researchers at Osaka Metropolitan University.
Elizabeth Roberto's research uses satellite imagery, historical archives, and AI to map how infrastructure decisions reinforce racial and economic divides. Her study spans 50 US cities and introduces new ways to measure spatial features of neighborhoods affecting access to schools and public resources.
A new study reveals that US cities maintain a constant level of economic coherence despite technological revolutions, with larger cities being less coherent. Coherence combines variety, workforce balance, and industry diversity, constraining transformations and diversification.
A new study investigates how rapid urbanization affects subjective well-being in China, finding that ecological improvements bolster lower well-being populations while social factors have a stronger impact on higher groups.
Researchers at the University of Chicago created an unprecedented approach to urban development using high-resolution data. The analysis shows that cities with better infrastructure have better developmental outcomes, and that improving access can improve residents' well-being beyond just physical needs.
A new deep-learning model calculates urban heat stress per square meter in the future, considering geodata and weather forecasts. The model simulates a range of climate scenarios, including increased heat stress due to rising greenhouse gas emissions.
A European-wide synthesis finds that pollinator-promoting interventions generally benefit plants and pollinators, with varying effects depending on intervention type and habitat. The study suggests that biodiversity-friendly urban management practices can improve public perception and promote healthier ecosystems.
A new study reveals that pedestrians are now walking faster and spending less time in public spaces. Researchers analyzed 40 years of video footage to find a 14% decline in people lingering in these areas.
A report by ICTA-UAB reveals that 40% of Spanish tenants spend more than 30% of their income on housing, with up to 28% experiencing energy poverty. The study highlights the need for coordinated reforms to address housing inequality and improve energy efficiency.