Tag

Urban Heat Island

All articles tagged with #urban heat island

canada12 days ago•16 min saved

Canada braces for tougher allergy season as pollen levels rise

Canadian researchers say pollen levels across the country have doubled in recent years, driven by warmer weather and shifting seasons, worsening allergies from hay fever to hives. With cedar, maple, birch, oak and poplar pollen overlapping this spring and urban heat islands amplifying the effect, experts say the season may be more intense in 2026. People are advised to limit outdoor activity and keep windows closed on high-pollen days to manage symptoms.

via Global News|

#allergies #canada #climate-change

science-and-technology20 days ago•184 min saved

Nano-coating cools roofs and harvests water from the air

Australian researchers have developed a nanoengineered cooling paint that uses passive radiative cooling to reflect most of the sun, keeping rooftops cooler and reducing building energy use, while also condensing moisture from humid air to harvest water. Early field tests showed solar reflectivity up to 96% and roof temperatures up to 6°C cooler than the surrounding air, with a Sydney trial suggesting up to 34% in cooling energy savings. In trials on a 200 m2 roof, about 74 liters of water per day were harvested. The paint is being considered for commercialization, but durability, performance in cloudy weather, upfront costs, and the lack of standardized testing remain challenges.”,

via CNN|

#climate-change #cooling-technology #nanomaterials

environment8 months ago•4 min saved

Green Bus Stops Boost Bees and Community Well-being

Green bus stops with living roofs are being implemented worldwide to combat urban heat, support pollinators, and integrate nature into cities, with potential to significantly increase urban green space and improve environmental health.

via The Washington Post|

#environment #green-bus-stops #green-roofs

weather1 year ago•2 min saved

Europe Endures Severe Heatwave with Widespread Red Alerts

Southern and eastern Europe are enduring a severe heatwave with temperatures significantly above seasonal norms, exacerbated by the urban heat island effect in cities like Athens. Night-time temperatures remain high, increasing health risks and energy demands. Several countries have issued heat warnings, and the heat is expected to subside by the weekend with thunderstorms. The prolonged dry conditions have heightened wildfire risks, with significant fires reported in Greece and Albania. Additionally, water reservoirs are at low levels, potentially leading to water restrictions during the peak tourism season.

via The Guardian|

#europe #heatwave #urban-heat-island

environment1 year ago•4 min saved

"Delhi Endures Deadly Heatwave with Over 100 Deaths Amid Brief Rain Relief"

Delhi residents are suffering from dangerously high nighttime temperatures amid a severe heatwave, exacerbated by the urban heat island effect. The relentless heat is causing health issues, straining resources, and making it difficult for people, especially those without air conditioning, to rest and recover. The situation highlights the broader impacts of the climate crisis, with significant health risks and increased mortality rates, particularly among vulnerable populations like the homeless and outdoor workers.

via CNN|

#climate-crisis #delhi #environment

climate-change2 years ago•7 min saved

Cities Lead the Way: Climate Week NYC and UN Summit Drive Ambitious Climate Action

Large cities, including New York City, are at the forefront of climate change, with urban populations being particularly vulnerable to the impacts of extreme heat and flooding. Heat waves pose a threat to city dwellers, especially those in disadvantaged communities without access to air conditioning. Flooding, exacerbated by rising sea levels and changing storm patterns, is becoming increasingly common in coastal cities. Both heat waves and flooding have significant impacts on public health, infrastructure, and the economy. Cities need to implement climate resiliency strategies to protect their residents, but many face challenges in terms of resources and funding. Climate migration may become more prevalent as people seek housing in safer areas further inland.

via ABC News|

#climate-change #climate-migration #climate-resilience

climate-change2 years ago•7 min saved

Urban Centers Lead the Charge in Addressing Climate Change, Experts Assert

Large cities, such as New York City, are at the forefront of climate change, with about 80% of the U.S. population living in urban settings. These cities are experiencing the impacts of climate change, including extreme heat and increased flooding. Vulnerable populations, particularly those in disadvantaged communities, are most affected by heat waves due to lack of access to air conditioning. Flooding is becoming more frequent in coastal cities, threatening homes and infrastructure. Cities need to prioritize climate resiliency strategies, such as improving infrastructure and implementing regulations, to protect their residents from future climate threats. However, more funding and resources are needed to address the scale of investments required.

via Yahoo! Voices|

#climate-change #climate-resilience #climate-week-nyc

environment2 years ago•3 min saved

"Arizona's Extreme Heat Claims Lives of Saguaro Cacti"

Phoenix's record-breaking heat is causing the death of cactuses, as the city's "urban heat island" effect keeps temperatures high even at night.

via CNN|

#arizona #cactuses #environment

climate-change3 years ago•5 min saved

"Billions at Risk: The Devastating Impact of Global Heating on Human Populations"

About 2 billion people will live in hazardous heat conditions by the end of the century if climate policies continue on their current trajectory, according to new research. Extreme heat can result in a range of illnesses and death, and the elderly, infants and children, pregnant women, outdoor and manual workers, athletes and the poor are particularly vulnerable. Cities around the world are introducing the new role of chief heat officer to deal with inevitable temperature increases, and strategies include preparedness, awareness, and adaptation, such as creating more green spaces in the city.

via DW (English)|

#adaptation #climate-change #climate-policies