Articles tagged with Urbanization
A recent study published in Advances in Atmospheric Sciences estimates that the Yangtze River Delta region contributes around one-third of China's total hydrofluorocarbon emissions. The study found that the region has a higher emissions intensity per capita, area, and GDP compared to national and global levels, with HFC-23 being the pr...
Researchers used data science and machine learning to forecast urbanization patterns, predicting a 1.8-5.9-fold increase in urban areas by 2100. Global simulations show countries transitioning from rapidly to steadily to urbanized over time, with varying impacts on environment and society.
A new Johns Hopkins University study finds that for every percentage point increase in roads and impervious surfaces, annual floods increase by 3.3% on average. The research team used a large dataset of streamgages and impervious surface data to isolate the effect of urbanization on flooding.
Researchers found that urbanization decreases 'flashiness' -- rise and fall rates of water flow in streams -- in arid urban watersheds. This is the opposite pattern observed in wetter regions like the East. The study suggests lessons for better stormwater management everywhere.
A new study reveals that urbanization shifts the seasonal cue for spring plant growth, with cities in cold climates producing leaves and flowers earlier and those in warm climates delaying it. The research found that other factors such as pollution and changes in humidity also influence plants' seasonal patterns.
Researchers found city homes to have a higher diversity of chemicals and fungi, while jungle huts had fresher air and natural materials that promote human health. Exposure to outdoor germs and natural materials may benefit the human microbiome.
A Kanazawa University study found Indonesian street vendors in Bandung are adapting to changing society by building networks, employing protection, and adopting new techniques. These efforts show that vendors can resist aggressive urbanization through subtle forms of resistance.
A study found that carnivores interact with each other more frequently when sharing green spaces in suburbs, contrary to previous theories. Preserving green space is crucial for wildlife species, providing cover, food, and navigation without human danger.
Wild bees experiencing widespread declines due to urbanization may be more male-dominated as females decline in numbers, impacting pollination and reproduction rates. This study suggests considering sex-specific differences in bee behavior when analyzing environmental change effects on populations.
Provinces in China with tighter cultures exhibit lower rates of radical innovation but higher incremental innovation, urbanization, economic growth, and gender equality. Tighter cultures are also associated with improved health and tolerant attitudes towards others.
A study by NC State University found that urbanization and scale-insect abundance, rather than latitudinal warming, are key drivers of tree health in cities. In the Southeast US, cities at mid-latitudes showed poorer tree health due to high volumes of tree-destroying scale insects.
A recent study found significant correlations between the population structure of Aedes aegypti mosquitoes and urbanization levels in São Paulo City. The researchers discovered that environmental pressures due to urbanization lead to the selection of phenotypes better adapted to the conditions, resulting in wing shape variability.
A new WCS-led study links tiger fate to demographic transition in human populations. The research highlights the importance of urbanization and education in tiger conservation, emphasizing the need for engagement with cities to save tigers.
A study published in Family Medicine and Community Health found that family support plays a significant role in motivating individuals with type 2 diabetes to improve their self-management behaviors and glycemic control. The research highlights the importance of motivation in managing chronic diseases like diabetes.
Human settlements with low flood protection levels tend to resettle further away from rivers after floods. Satellite data analysis in 16 countries showed that the distance between humans and rivers increased, especially in areas with high flood fatalities.
A new study finds that one-third of protected land globally is under intense human pressure, threatening conservation efforts. However, protected areas designated after 1993 have lower levels of human pressure within their borders.
A shocking study reveals that one third of the world's protected areas, covering twice the size of Alaska, are under intense human pressure. The authors warn that this will undermine biodiversity loss goals if widespread degradation continues.
A North Carolina State University study found that two fish species, western blacknose dace and creek chub, evolved different body shapes in response to urbanization. The study showed that the dace became more streamlined, while the chub developed deeper bodies in urban areas. Lab experiments confirmed that genetic differences played a...
Researchers found that urban-induced warming in Beijing increased with urban land expansion, but the rate of increase slowed down after 2000. The study also revealed an interrelationship between urban-induced warming and heat waves, suggesting that urban expansion may heighten heat waves in urban areas.
A new WCS paper finds that global demographic and economic trends could create conditions for a possible renaissance of nature. The authors propose protecting threatened wildlife and wild places, creating sustainable cities, and inspiring consumer choices to conserve the natural world.
Research from Florida State University found that urban areas in Florida experience shorter and more intense wet seasons compared to rural areas. The study indicates a trend of decreasing wet-season length by 3.5 hours per year in urban areas.
A study by RUDN University scientists suggests that urbanization can increase soil organic carbon stocks, particularly on less fertile soils. This process could help mitigate the impacts of climate change.
A recent study reveals that urbanization is driving evolutionary changes in various species, including mosquitoes, bedbugs, and rats, with potential consequences for human health. The researchers argue that cities are becoming a novel ecosystem, influencing the evolution of species that may, in turn, affect our lives.
A new study by Carnegie Mellon University researchers found that environmental regulations can reduce pollution emissions from urbanization without hindering economic growth. The study used annual data on air quality and economic indicators to assess the impact of stricter pollution standards, finding no negative effect on GDP.
Researchers in Mozambique found that people who live in electrified urban areas retire earlier but still get sufficient sleep, contradicting previous assumptions. The study suggests that the relationship between electricity and sleep loss is more complex than previously thought.
Researchers analyze coupling relationship between urbanization and eco-environment, finding external elements dominate metabolic structure. This leads to accelerated drop in metabolic emergy intensity and increased environmental load. The study provides quantitative reference points for effective decision-making.
A Chinese research team proposes a multi-dimensional system dynamic (SD) simulation model to understand China's urbanization process. The model provides a comprehensive view of the mechanism constrained by environmental sustainability, with an ultimate urbanization level predicted in multiple scenarios.
A study by University of Michigan researchers found that bumblebee populations are higher in Detroit than surrounding less-urbanized areas. Vacant lots may provide essential nesting sites and food sources for the bees. The results suggest that urban landscapes can be managed to support native bee conservation.
A new study from the Santa Fe Institute proposes a quantitative index to measure sustainable development in cities, revealing systematic correlations between urbanization and poverty reduction. The research also highlights persistent inequalities in access to housing and services across neighborhoods.
Long-term datasets show mosquito populations increased ten-fold in NY, NJ, and California over the past five decades. Urbanization and residual DDT concentrations drove these changes, contrary to initial expectations linked to climate change.
Researchers used high-resolution connectivity maps and satellite imagery to predict how future land-use change and climate change will alter landscape connectivity for six species, including black bear and red wolf. The study highlights the urgent need to protect and restore habitats to promote species survival.
A Yale-led study provides a spatially explicit dataset of urban centers from 3700 BC to A.D. 2000, offering insights into long-term historical urbanization trends and patterns. The dataset allows researchers to map and visualize city-level population changes through time, shedding light on human interactions with the environment.
Cities around the world are exploring innovative ways to reduce their carbon footprint, from solar panels on buildings to optimized transportation systems. Researchers propose various strategies to improve water management, food supply chains, and air quality in urban areas.
Despite failure to meet Millennium Development Goal target, papers showcase positive developments and point the way forward for improved sanitation and drainage in cities. The journal explores persistent gaps in urban sanitation provision and ways to address them.
A new NASA study reveals that the presence of vegetation is crucial in mitigating urban heat island effects, which can raise temperatures by 1.9°C in urban areas compared to surrounding rural areas. The study found that replacing impervious surfaces with vegetation can reduce temperature differences by up to 1.3°C.
Urbanization leads to more thunderstorm initiation events, posing dangers like lightning and flash floods with little warning. The risk is higher on weekdays due to increased aerosol levels from commuters.
A study found that orb-weaving spiders living in urban areas tend to have larger bodies and increased reproductive abilities compared to those in natural environments. The spiders' size is associated with the level of urbanization, with larger bodies found in areas with more hard surfaces.
A new Arizona State University study examines the impact of urbanization on heat-related mortality in Maricopa County. The research found that projections of heat-related mortality range from a decrease of 46 deaths per year to an increase of 339 deaths per year, with nighttime temperatures being a significant concern.
A new study finds that climate change and urbanization are threatening Ohio butterflies, with eight species showing significant delays in lifecycle events. The findings suggest that these changes may render the species unfit for parts of the state, highlighting the importance of monitoring butterfly populations.
Rapid urbanization exposes French cities to significant seismic risk, with old structures posing a major vulnerability. The study found that if the 1909 Lambesc earthquake were to occur today, the region would suffer serious consequences, including damage to over 15,000 buildings.
Researchers at Arizona State University discovered a direct link between urbanization and increased parasitic infections in wild house finches. The study found that birds from more urbanized areas were heavier and more infected by internal parasites, which disrupt the animal's ability to get nutrients.
Researchers developed a high-resolution map of streams in the Potomac River watershed, revealing previously hidden streams and improving understanding of urbanization's impact on aquatic ecosystems. The study's findings have significant implications for sustainable development and land use decisions.
Cities are likened to social reactors and networks, attracting people and accelerating social interaction. The new framework predicts statistical relationships observed in thousands of real cities worldwide, providing insights into urban growth and development.
Researchers found that urban-born blackbirds waited longer to approach new objects and tended to avoid unfamiliar ones compared to their rural counterparts. This suggests that urbanization may have an underlying evolutionary impact on the development of distinct personalities in birds.
A recent study found that urbanization significantly affects surface warming in eastern China, particularly in the Yangtze River Delta (YRD) region. The study revealed a remarkable summer warming rate of 0.132-0.250°C per decade, accounting for 36%-68% of regional warming. In contrast, the Beijing-Tianjin-Hebei (BTH) region experienced...
A study by Arizona State University reveals that megapolitan expansion could lead to local maximum summertime warming of nearly 4 degrees Celsius, surpassing the warming caused by increased greenhouse gases. The research found that incorporating 'cool roofs' into urban planning can alleviate summertime warming substantially.
By 2030, humanity's urban footprint will occupy an additional 1.5 million square kilometers, equivalent to the combined territories of France, Germany, and Spain. The forecast urban population in 2050 is expected to reach 6.3 billion, with dense cities designed for efficiency offering a promising path to sustainability.
By 2030, urbanized land worldwide will grow by 590,000 square miles, posing threats on environmental and economic levels. Cities tend to have better access to healthcare, water, and sanitation facilities, driving innovation and business opportunities.
Researchers at the University of Calgary discovered that urban life is far from ideal for Prairie bats, contrary to expectations. Despite the presence of roosts and food sources in cities, bat populations exhibit poor body condition, reproductive rates, and juvenile survival.
A study in Indianapolis found that increasing urbanization has led to the loss of native plant species and the introduction of non-native invasive species. Over 70 years, Indianapolis's native plants have declined at a rate of 2.4 species per year, while non-natives arrive at a rate of 1.4 species per year.
A new study found that a slowing of population growth could contribute to reducing greenhouse gas emissions, with slower growth paths by 2050 accounting for 16-29% of necessary emissions reductions. Urbanization and aging also play significant roles in shaping future emissions.
A team of scientists finds that global warming is unlikely to expand the range of malaria due to effective control measures, urbanization and economic development. Malaria control efforts have reduced the disease's prevalence over the past century despite a global temperature rise.
A new study reveals that urban growth and agricultural exports are major drivers of tropical deforestation, contrary to previous assumptions. The study found that industrial-scale clearing in countries like Brazil, Indonesia, and Cambodia is driven by demand for products like palm oil, soybeans, and meat.
Monsoon rainfall has decreased over the past 50 years in rural areas with increased irrigation in northern India, while urban areas have seen an increase in heavy rainfall. This shift is attributed to landscape changes and cooling effects on low-pressure systems necessary for monsoons to progress.
A Dutch study finds that expanding communities and municipalities leads to a 'dilution' of citizen protests, with densely populated areas experiencing more opposition against disappearing green spaces. Concerned citizens are often well-educated and personally invested in the areas affected.
A six-year study found that urban areas attract lower-quality Acadian Flycatcher birds, which have reduced nesting success. These birds are more likely to fail or abandon their nests and return year after year.
A new study from Harvard University and colleagues challenges previous knowledge about the origins of urbanization, proposing that smaller groups made decisions leading to city growth. The research analyzed artifacts at Tell Brak in Mesopotamia over an 800-year period, revealing patterns of population growth and settlement clusters.
A study on European blackbirds found that urbanization favors sedentary males, with those exhibiting lower migratory disposition having an earlier onset of reproductive season. This is due to the advantages of sedentariness and earlier territory establishment for males in terms of reproductive success.
Researchers found that a one-mile stretch of National Forest significantly reduced chemical pollutants and improved bacterial populations in a stream. The study suggests that undeveloped forest sections can mitigate the effects of urbanization on water quality.
The UN model predicts 60.8% of people will live in towns and cities by 2030, but a new model suggests this number is lower at 49.2%. Most population growth between 2025-2030 will come from 10 large developing countries.