A recent World Meteorological Organization report called heat waves the “deadliest meteorological hazard” from 2015 to 2019, affecting people living on all continents, and setting new national heat records in many regions.
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It’s been another hellish summer. A double whammy of the human-caused climate crisis and the arrival of El Niño has fueled soaring temperatures that have made this year downright deadly. July 2023 has been declared the world’s hottest month on record. In a recent address, UN Secretary-General António Guterres ominously described this year as the dawning of “the era of global boiling.” In Europe, over 60,000 people died last year from heat-related illnesses, with some countries adopting a naming system for heat waves akin to those used for hurricanes and typhoons. The Italian Meteorological Society, for instance, named a recent heatwave “Cerberus,” after the three-headed hound guarding the gates of hell in Dante’s “Inferno.” Problems are especially acute in densely populated cities where the “urban heat island effect” can result in microclimates about 10 degrees Celsius (18 degrees Fahrenheit) hotter than surrounding areas. The phenomenon, first documented in the 1800s by an amateur meteorologist in London, occurs in areas with high concentrations of heat-absorbing concrete buildings, asphalt surfaces and a dearth of green spaces. Despite knowing about the perils of global warming for decades, many cities are proving to be woefully unprepared. Now, local officials are appointing “chief heat officers” to expedite “heat action plans,” while start-ups race to invent better air conditioners and personal cooling devices. Many solutions are based on time-tested design principles. Here are five things cities are doing right now to combat rising temperatures. https://lnkd.in/gh-p_7qN #cities #citiesforpeople #heat #design #globalwarming #climatechange #solutions
Cities are hotter than ever. Here are 5 things they can do about it | CNN
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🌆 An Urban Heat Island (UHI) is an urban area that is significantly warmer than its rural surroundings due to artificial infrastructure and human activities. As we approach summer in the northern hemisphere, people will tend to remember this problem only when facing it. But what can be planned in advance? 🚗 Paved ground, streets without trees, not enough urban gardens and leisure areas in the urban perimeter, narrow streets without air circulation, all are causes of average higher temperatures that create the UHI. 🌳 More vegetation cover and water surfaces are needed in the heart of our cities. The spatial variation of temperature can be obtained using an urban climate model, which must include variable as air temperature, specific humidity, relative humidity, and wind speed. 🔗 Read the full article, from Copernicus, here https://lnkd.in/dhA4ry3X and leave your comments. #urbanheatisland #summer #climateadaptation #digitaltwins #climatecrisis #treeplanting #urbangarden #watersurface #temperature #humidity #windspeed #copernicus Digital Twins
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Climatic Condition & Human Activity |Topographical Map | #icsegeography #climate #economicactivity https://lnkd.in/dnBm5EDd
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The Bureau of Meteorology has declared that El Niño and a positive Indian Ocean Dipole (IOD) are underway. Warmer and drier conditions will be more likely over spring and summer for parts of Australia, under the influence of these two climate drivers. Bureau of Meteorology Climate Manager Dr Karl Braganza said both El Niño and a positive Indian Ocean Dipole (IOD) tend to draw rain away from Australia. "Over spring, their combined impact can increase the chance of below average rainfall over much of the continent and higher temperatures across the southern two-thirds of the country," Dr Braganza said. “The Bureau’s three-month forecast for Australian rainfall and temperature have been indicating warm and dry conditions for some time.” Read BoM'S update here: https://lnkd.in/g_RipVFX View the long-range forecast here: https://lnkd.in/ge7iD7M
The Bureau declares El Nino and positive Indian Ocean Dipole events
media.bom.gov.au
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🌆🌡️ As the planet warms, extreme #heatwaves become more frequent, intense, and long-lasting. In cities, the consequences are even more dramatic due to the 'urban heat island' phenomenon. Last July, in Phoenix, US, the daily temperature reached 43.3C for 31 consecutive days. Watch the video to discover urban planning techniques that can help mitigate the effects of heat ⏬
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The #Climate #Mapping for #Resilience & Adaptation Portal provides access to climate data. View #RealTime statistics & #maps documenting where people, property, & #infrastructure may be exposed to #hazards such as #flooding https://ow.ly/qvXY50PLMom #NOAA #GIS #Esri #ArcGIS #URISA
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Foresight Strategist | Signal spotter | Curious Human | Un-learner | All Opinions Are My Own. See the disclaimer.
Flooding frequently made weather headlines in 2023. In the mid-2030s, every U.S. coast will experience rapidly increasing high-tide floods, when a lunar cycle will amplify rising sea levels caused by climate change based on NASA predictions. Sponge city concept, like the one in Nanchang, China, looks like an urban park resembling forest, made with trees and volcanic rocks. Many cities do not have infrastructure to withstand intensified climate events, like flooding. They are covered with pavements and other surfaces that cannot absorb water, making cities even more vulnerable to flooding. In 2015 China piloted a sponge city program to improve drainage and flood presentation infrastructure, and create a diverse biological environment. Many ideas were inspired by ancient drainage systems. The architects supplemented pipes and drains with natural solutions like trees that were meant to capture excess water. Other practices entailed building roofs with sloped eaves that allowed rainwater to fall onto permeable pavement below and exterior walls were lined with flowers (!!) & trees to absorb rain and stormwater, according to Vox. In Shanghai concrete roads are replaced with permeable pavement lined with vegetation. Many projects rely on vegetation to soak up the excess water that can support biodiversity while helping to defend against flooding but they are not fail proof and still can be overwhelmed by heavy flooding. They are also notoriously difficult to implement due to cost, size requirements and different structure of the cities themselves. In LA, there are experiments with planting vegetation in median strips. Berlin is another interesting example of the sponge city strategy that harnesses water and manages heat by initiating natural water cycle, as an example at the street level urban wetlands and roadside trenches (Swales) filter run-off and hold water to keep the city cool. Some of the sponge city projects started almost 2 decades ago and have become pretty large scale. With these concepts in mind, it would be interesting to see how cities will change over the next decade & implications it would have not only on city dwellers but also on commerce in cities. #climatechange #futurecity #spongecity
Ten countries and territories saw severe flooding in just 12 days. Is this the future of climate change? | CNN
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How well does your city know its #roofs? Their contribution to #climate #resilience is significant. Presented via bird's eye views, Cambridge Roofscapes investigates their distribution & impacts throughout a city: https://ow.ly/I4nv50R4vZt #GIS #Esri #ArcGIS #URISA #smartcity
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Happy to share our latest article, "Effects of extreme weather events and climate change on cities' livability," in Cities (IF: 6.7; Q1). Siamak Farrokh Zadeh
Effects of extreme weather events and climate change on cities' livability
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Have you ever heard of a Chief Heat Officer? The CHOs are new institutional figures tasked with coordinating the adaptation of urban areas to rising temperatures caused by climate change. In today’s context is becoming increasingly important for cities to rethink their strategies for adapting urban planning in response of global warming. #Webuild ...coordinate urban policies to respond to climate challenges, including sea level rise and extreme weather events...a new and interesting professional figure is emerging!!
Some cities are appointing a Chief Heat Officer
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