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Air pollution and proximity to blue and green spaces found to be key factors affecting quality of life of people living with chronic obstructive pulmonary disease

High air pollution exposure worsens COPD patients' quality of life, while living far from green spaces also reports negative effects. Access to blue and green spaces improves mental and physical health through increased physical activity.

SourceUniversity of Alberta Faculty of Medicine & Dentistry·JournalEnvironmental Research·DateNov 5, 2021

Ranking of European cities with highest mortality due to lack of green space

A study by the Barcelona Institute for Global Health found that 62% of Europeans live in areas with less than recommended green space, leading to 42,968 premature deaths. The study suggests that European cities should focus on reclaiming urban land for green spaces and implementing nature-based solutions.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalThe Lancet Planetary Health·TypeData/statistical analysis·DateOct 7, 2021

In Guatemala, archaeologist from Brown helps to uncover hidden neighborhood in ancient Maya city

A recent discovery at Tikal reveals a previously unknown neighborhood designed to replicate Teotihuacan's citadel, sparking new insights into the interaction between the two civilizations. Excavations found evidence of occupation and surveillance, as well as artifacts linking Tikal to Teotihuacan's imperial power.

SourceBrown University·JournalAntiquity·TypeComputational simulation/modeling·DateSep 28, 2021

Slam the door shut: Improving building energy by evaluating building airflow

Scientists from Incheon National University identified interzonal airflow across household entrance doors as a dominant factor in calculating heating loads. They found that strong stack effect and weather-driven airflow rates were larger than external infiltration rates, making conventional airtightness measures unreliable.

SourceIncheon National University·JournalRenewable and Sustainable Energy Reviews·TypeExperimental study·DateAug 9, 2021

When a single tree makes a difference

A new study from American University found that individual trees can help mitigate urban heat, particularly in evening hours. The research showed that neighborhoods with at least half of the area covered by canopy were 1.4 degrees Celsius cooler than those with few trees.

SourceAmerican University·JournalEnvironmental Research Letters·DateJul 12, 2021

10 keys to integrating health into urban and transport planning

The Barcelona Institute for Global Health has identified 10 key principles for integrating health components into urban design, aiming to reduce premature mortality. The study provides a checklist for urban planners to incorporate public health into their work, promoting active and public transport, green spaces, and mixed land use.

SourceBarcelona Institute for Global Health (ISGlobal)·JournalInternational Journal of Hygiene and Environmental Health·DateJun 23, 2021

Counting pedestrians to make pedestrians count

A new model developed by MIT's Andres Sevtsuk can estimate pedestrian journeys and trip distribution, providing a solution for planners and developers to better understand foot traffic in cities. The model uses network analysis and real-world data to calculate pedestrian flows, which can be applied to various urban settings.

SourceMassachusetts Institute of Technology·JournalJournal of the American Planning Association·DateApr 14, 2021

The city formula

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.

SourceComplexity Science Hub·JournalJournal of The Royal Society Interface·DateMar 16, 2021

Scientists develop new land surface model including multiple processes and human activities

Scientists developed a new land surface model incorporating multiple processes and human activities to improve water-energy simulations and environmental protection. The CAS-LSM model can evaluate ecohydrological effects of stream water transfer and provide advice for urban planning.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalJournal of Advances in Modeling Earth Systems·DateDec 18, 2020

ASU climate study looks at humans' exposure to extreme temperatures during 21st century

A recent ASU climate study forecasts a substantial rise in human exposure to extreme temperatures in the US during the 21st century. By the end of the century, the annual heat exposure is expected to increase nearly 30-fold, with major metropolitan regions like New York and Los Angeles facing significant changes.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateAug 17, 2020

Turning Phoenix green

A study by Arizona State University found that urban agriculture can meet 90% of Phoenix's current annual fresh produce consumption. The city could also increase green space by 17% and reduce CO2 emissions by displacing energy use equivalent to 6,000 homes.

SourceArizona State University·JournalEnvironmental Research Letters·DateSep 30, 2019