Articles tagged with Urban Populations
A study using nationwide mobility data in China examined extreme fluctuations in population movements during the Lunar New Year travel season and COVID-19 lockdowns. The results showed that high-tier prefectures retained stable clusters, while low-tier prefectures had larger population flows to these areas.
A national study shows that reducing US jail populations leads to community-wide public health benefits, as overcrowded facilities become 'infectious disease incubators' for COVID-19. Decarceration reduces the spread of SARS-CoV-2, benefiting both those released and communities nationwide.
A study of 20 US cities reveals that urban intensity, characterized by paved landscapes and high population density, is a stronger correlate with mammal biodiversity than income. While the 'luxury effect' shows some correlation between income and biodiversity, it's not strong enough to explain the observed patterns.
Researchers at Portland State University developed new survey methods to address the limitations of current household activity surveys. The study found that existing methods lack social, cultural, and linguistic applicability for marginalized groups, leading to inaccurate data. By improving data collection efforts, transportation profe...
Researchers analyze impact of risk factors on heat-related mortality at different spatial scales, finding age, education, and socioeconomic status are key contributors. A localized approach is needed to address specific conditions at the city, region, and neighborhood levels.
A new study published in Ecosphere suggests that fear plays a significant role in underdeveloped nestlings and increased vulnerability among urban songbirds. Urban landscapes can have a profound effect on birds' behavior, causing them to change their behavior to avoid perceived predators, leading to reduced weight and survival rates.
A survey of US and NYC parents found that only 49% planned to vaccinate their youngest child, with vaccine hesitancy linked to education level and income. The study highlights the need for targeted information campaigns to improve vaccination uptake among young children.
Researchers documented the emergence and geographic spread of innovative bin-opening behaviors in sulphur-crested cockatoos, revealing a complex social learning culture. The behavior, which emerged as a response to land-use change and urbanization, demonstrates how animal cultures can adapt to urban environments.
New research reveals that low-income neighborhoods and minority communities experience significantly more urban heat than their wealthier counterparts. The study, published in Earth's Future, found that land surface temperatures in these communities can be up to 4 degrees Celsius warmer during the summer months.
A new study using EDGAR database shows that urbanisation has led to a significant reduction in greenhouse gas and air pollutant emissions in high-income countries. The majority of global emissions occur in urban areas, with some exceptions like NH3 emissions, which are mostly driven by agricultural activities.
A new study using fecal stanols found that the Maya population in Itzan declined due to both droughts and wet periods, showing a link between climate extremes and population changes. The research provides insights into how ancient civilizations adapted to environmental issues like soil degradation and nutrient loss.
A $200,000 grant will help promote vaccine confidence and uptake among farmworkers and other marginalized populations in 8 New York counties. The project aims to address health disparities and build equity through effective vaccination partnerships.
A new study by Iowa State University found that small Iowa towns have significantly higher environmental exposures than state averages, including diesel, air toxins, and lead paint. These risks disproportionately affect vulnerable populations such as minority status, low-income, and linguistic isolation.
A global correlation between urban green space and happiness was found across 60 countries using satellite imagery data. The study revealed that urban green space adds to happiness beyond the baseline determined by a nation's wealth.
Researchers developed a new model that addresses gaps in urban climate modeling, providing global multi-model projections of local urban climates. The study finds that cities in high-stakes regions like the Great Lakes and southern Europe are at higher risk for extreme heat events.
A new study finds that loss of nature will exacerbate racial and income inequality, with non-white people losing 224% air quality benefits, 118% crop pollination, and 111% disease control between 2020 and 2100.
A new study finds that low-income blocks in 92% of US urban communities have less tree cover and are hotter than high-income blocks. The analysis revealed a disparity of 15.2% in tree cover between low- and high-income blocks, with low-income blocks being 1.5°C hotter.
A new study by University of Bristol experts finds that internet adoption and urbanization are complementary, reinforcing higher population concentrations in national urban systems. The research suggests that digital technologies have not led to an exodus from cities, but rather attracted more people towards them.
A new study by ISGlobal estimates that poor urban and transport planning is associated with over 1,000 premature deaths per year in Barcelona and Madrid. The study found that fine particulate air pollution was the leading cause of death, accounting for 524 deaths per year in Barcelona.
A series of land-based learning retreats is helping Indigenous youth reconnect with their cultures, emphasizing knowledge-sharing, survival skills, and ceremonies. The retreats provide a safe space for young people to learn about their heritage, including cultural workshops, arts-based activities, and storytelling sessions.
Researchers found that urban agriculture alone cannot meet the nutritional needs of a city's population due to limited crop yields and nutrient deficiencies. However, with fortification or supplementation, urban agriculture can contribute significantly to meeting food demand.
A new study projects extreme heatwaves of up to 56 degrees Celsius in the MENA region, posing a significant threat to human life and forced migration. The research team recommends immediate climate change mitigation measures and adaptation solutions for urban centers.
A Finnish study analyzed the reproductive histories of women who moved from rural to urban areas during WWII and found that urban women were 15% less likely to reproduce than their rural counterparts. The study suggests that women may be delaying childbearing due to increased competition for spouses in urban environments.
Urban scaling laws, observed in cities worldwide, can be explained by the spatial geometry of a city. Researchers mapped building heights and assigned dots to people living in buildings to determine fractal dimensions, revealing a constant sublinear scaling exponent that determines city growth rates.
A new study uses multiple approaches to investigate the diet of ancient dogs in the Americas, revealing a diverse diet including maize, walnuts, grapes, fish, and duck. The analysis also sheds light on human-dog dietary overlap, providing insights into human health and diet.
A global study of over 137,000 people found that a diet high in poor quality carbohydrates increases the risk of heart attacks, strokes, and death. Those consuming diets with high glycemic index were 50% more likely to have cardiovascular events if they had a pre-existing heart condition.
Researchers found higher population densities linked to faster SARS-CoV-2 spread, while specific viral strains like G614 contributed to increased transmission rates. Vaccination campaigns can target densely populated areas and monitor regional strain variations to control disease spread.
A new study by FAO and University of Twente reveals that small cities and towns play a significant role in shaping food systems, social development, and economic growth. The research highlights the need for greater coordination between urban and rural administrative authorities to address unequal access to services and employment oppor...
The study analyzed 841 large cities' urban built-up areas expansion, population growth, and greening changes, revealing a huge pace of urbanization disparity. China demonstrated the biggest urban expansion, while cities in low-income countries lagged behind in infrastructure development and greening.
A 48-year-old man with chest pain and body lice infestation was diagnosed with trench fever, a bacterial infection that can lead to endocarditis. Physicians should consider Bartonella quintana infection in unwell patients with a history of body lice infestation, given its association with homelessness.
A study by NYU Langone Health found that once hospitalized, Black patients with COVID-19 have better outcomes than White patients. The research controlled for comorbid conditions and neighborhood income.
The study found that higher population densities, younger populations under 18, and lower incomes led to increased COVID-19 positivity rates. Neighborhoods with a higher percentage of Black population also showed increased positivity rates.
Red foxes show dietary specialization, with country foxes having a broader diet than urban conspecifics. Urban foxes primarily feed on discarded food, indicating an abundant food supply.
A new NYC study reveals a significant variation in obesity prevalence among Latino populations, with Mexicans and Puerto Ricans more likely to have obesity. The study suggests that standardised treatment may obscure unique risks among specific groups, highlighting the need for culturally tailored approaches.
A new study projects that major US cities will experience significantly increased exposure to extreme heat and cold by the end of this century. The study's authors used a novel approach to account for urban development and its interactions with climate change to predict changes in population-weighted exposure to extreme temperatures.
A University of Arizona study found that mechanisms making organisms fit into current environments are distinct from those responsible for change, and occur sequentially in evolution. The research used the house finch as a model, tracking carotenoid pigments in feathers across different regions.
Researchers analyzed language use and population distribution to find links between ethnolinguistic diversity, urbanization, and armed conflict. The study suggests that policies addressing ethnolinguistic tensions can minimize negative impacts on economic growth.
Researchers analyzed data from Columbus, Ohio, and Atlanta, Georgia, to find that income and race significantly affect access to green spaces. Wealthier neighborhoods have greater access to parks, trees, and sports fields in Columbus, while racial disparities are more pronounced in Atlanta.
Rural patients receive lower quality care and have higher mortality rates due to limited access to advanced stroke treatments. The analysis found that hospital capabilities for delivering advanced stroke care are lower in rural areas, resulting in substantially higher mortality rates.
Researchers found that providing high-quality supplementary food boosts urban great tits' breeding success, with insects playing a crucial role in their development. Urban areas support fewer insects than natural habitats, leading to reduced breeding success.
A recent OSU study highlights the grange as a community-based organization with close ties to public health goals. The grange's physical buildings and similar missions make it an ideal partner for health initiatives, including blood drives, mental health awareness classes, and food programs.
The report highlights eight urgent recommendations for reducing COVID-19 impact on urban poor, prioritizing community leadership and access to healthcare. Governments should provide basic needs like water, sanitation, and moratoriums on evictions to help vulnerable populations.
The study highlights how urbanization is creating new areas where infectious diseases can spread, particularly in suburban and peri-urban settlements. These areas are often densely populated, poorly planned, and lack health infrastructure, making them vulnerable to disease outbreaks.
A mathematical model produced more realistic estimates of COVID-19 cases by incorporating population density, age distribution, and transmission probability. The model suggested significant underreporting in various countries, including Italy, South Korea, and Spain, highlighting the need for improved testing and data reporting.
A new study found that only international trade has a net positive effect on global food systems sustainability, while population growth, urbanization, and lifestyle change have negative impacts. The study suggests that policymakers need better tools to measure and monitor food system dynamics to make them more sustainable.
A study by Texas A&M University researchers found that over 60% of urban expansion since 1970 came from agricultural land, posing serious concerns for fertility and food security. The trend, driven by small- and medium-sized cities in India, China, and Nigeria, threatens the livelihoods of millions of small farmers.
Research suggests that urban horticulture can provide a significant portion of the local population's 'five a day' by growing fruit and vegetables in domestic gardens, allotments, and public green spaces. This could feed approximately 709,000 people per year if all space is utilized.
A new NASA/university study uses satellite data to track carbon dioxide emissions in 20 major cities worldwide, revealing that densely populated cities tend to emit less CO2 per person. However, exceptions exist, such as cities with major power generation facilities and affluent areas with high rates of driving.
Researchers identified two genetically distinct 'urban' and 'rural' fox populations in Berlin, influenced by physical barriers and human activity levels. Foxes from the city population are bolder but prefer to avoid areas of high human activity, highlighting their risk management strategies.
New research shows that seagulls are more likely to peck at food that has been handled by humans. This suggests they use human actions when deciding what to eat. The study, published in Royal Society Open Science, also found that gulls' preference for food is not just based on the sight of food.
A study by CCNY researchers found that flying foxes are dwindling in population due to overhunting, with potential consequences for human health and ecosystem conservation. The findings highlight the critical role of islands in species evolution and diversity.
Researchers have created a 'Rosetta stone' for urban scaling, mapping out common ground between cross-sectional and temporal approaches to study city growth. The framework reveals new insights about a city's behavior, including superlinear growth in socioeconomic properties.
A new study predicts 13 million US residents will be forced to relocate due to rising sea levels by 2100. Cities like Atlanta, Houston and Denver are expected to experience significant population growth, with effects on jobs, housing prices and infrastructure.
A new study by the University of Exeter found that people who live in areas with more natural exposure are more likely to engage in environmentally friendly behaviors. Urban greening initiatives could play a key role in reducing carbon emissions and promoting sustainability.
A new study analyzes UK cities' air pollution concentrations, revealing some perform better than expected due to dispersal. Cities like Milton Keynes and Stoke-on-Trent benefit from spacious layouts, while densely populated areas like Luton struggle with pollution concentration.
Researchers analyzed customer movement patterns in Tesco supermarkets to develop a method to reduce congestion. Placing popular goods near store perimeters was found to be effective in decreasing aisle crowding.
The study found that suburban expansion is the predominant pattern in cities worldwide, driving inefficient and unsustainable development. Notable exceptions exist in East and Southeast Asia, where high-rise construction is on the rise.
A new study projects that urban expansion will trigger 'extra' warming due to the urban heat island effect, increasing extreme heat risks for half of the world's future urban population. The study forecasts temperatures may rise up to 3 degrees C in some locations, particularly in tropical regions.
Studies found that urban emergency department patients who face unemployment and food insufficiency are more likely to smoke. Socioeconomic stressors also affect the likelihood of smoking among men and women, with certain groups showing different patterns.
Researchers discovered that chinampas, a raised field system on artificial islands, can provide fresh produce year-round with low irrigation needs. The system's high productivity and sustainability make it an attractive solution for modern megacities.