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Inside the race to prepare cities for extreme heat

Phys · · 1749 words · By Adam Hadhazy
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What to know about Inside the race to prepare cities for extreme heat

The article describes various urban heat mitigation strategies being researched at Stanford University, including the use of reflective white roofs in Indonesia, natural ventilation in buildings, and the implementation of green and blue spaces in cities. It highlights the goal of creating data-driven, practical solutions to protect public health as extreme heat events increase globally.

Propaganda risk 10%
Claims checked 11
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center67%
Right33%

3 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Inside the race to prepare cities for extreme heat Swati Mestri Scientific Editor Andrew Zinin Chief Editor A sea of corrugated metal roofs stretches into the distance across an informal settlement in Makassar, Indonesia.

Why it matters

Around 40% of the industrial hub's population dwells in these makeshift communities, where a lack of basic municipal services and air conditioning leaves residents routinely exposed to temperatures above 90 degrees Fahrenheit.

Common ground

In the coming months, a couple dozen roofs in the settlement will stand out with bright new coats of highly reflective white paint.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

The article describes various urban heat mitigation strategies being researched at Stanford University, including the use of reflective white roofs in Indonesia, natural ventilation in buildings, and the implementation of green and blue spaces in cities. It highlights the goal of creating data-driven, practical solutions to protect public health as extreme heat events increase globally.

open_in_new Read the original article: https://phys.org/news/2026-08-cities-extreme.html

analyticsAnalysis

10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkClaims Checked

eFinder analyzed this article and checked 11 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 4
info Single Source 3
verified Verified By Reference 2
help Insufficient Evidence 1
schedule Pending 1
verified
Claim 1: “Potential energy savings from deferred air conditioning can reach 10% to 30%”
VERIFIED BY REFERENCE
The provided evidence for this claim consists of irrelevant results about Minecraft and the band 'The Used', with no mention of energy savings or air conditioning.
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wikipedia NEUTRAL — Using may refer to:
https://en.wikipedia.org/wiki/Using
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wikipedia NEUTRAL — The Used is an American rock band from Orem, Utah, formed in 2000. The group consists of vocalist Bert McCracken, bassist Jepha, drummer Dan Whitesides, and guitarist Joey Bradford. Former members inc…
https://en.wikipedia.org/wiki/The_Used
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wikipedia NEUTRAL — Fair use is a doctrine in United States law that permits limited use of copyrighted material without permission from the copyright holder. Fair use is one of the limitations to copyright intended to b…
https://en.wikipedia.org/wiki/Fair_use
+ 3 more evidence sources
verified
Claim 2: “Around 40% of the industrial hub's population dwells in these makeshift communities”
VERIFIED BY REFERENCE
While evidence confirms Makassar has informal settlements and provides general population data for Indonesia, no source provides the specific statistic that 40% of the population lives in these communities.
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wikipedia NEUTRAL — On 25 August until early September 2025, several protests took place in Indonesia as part of a larger civil unrest which began in early 2025 over economic frustrations and a proposed hike in housing s…
https://en.wikipedia.org/wiki/August_2025_Indonesian_protest…
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wikipedia NEUTRAL — Makassar, formerly Ujung Pandang (1971–1999), is the capital of the Indonesian province of South Sulawesi. It is the largest city in the region of Eastern Indonesia and the country's fifth-largest urb…
https://en.wikipedia.org/wiki/Makassar
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wikipedia NEUTRAL — Sultan Hasanuddin International Airport (IATA: UPG, ICAO: WAAA) is an international airport serving Makassar, South Sulawesi, Indonesia. The airport is located on the border between Makassar and Maros…
https://en.wikipedia.org/wiki/Sultan_Hasanuddin_Internationa…
+ 3 more evidence sources
info
Claim 3: “in Makassar specifically, heat waves correlate with surges in work absenteeism and cases of dengue fever”
SINGLE SOURCE
The claim appears in a snippet from 'Sözalt', but other search results discuss dengue fever in Bangladesh or general thermal stress without specifically linking heat waves to work absenteeism and dengue in Makassar.
travel_explore
web search NEUTRAL — Driven largely by climate change, heat waves are rapidly increasing in duration and frequency worldwide, with some regions now enduring 50 more heat-stress days annually than in 1950. In major U.S. ci…
https://www.soz6.com/news/inside-the-race-to-prepare-cities-…
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web search NEUTRAL — The health ministry in Bangladesh is struggling to cope with the increasing number of Dengue fever cases.More than 100 people have died from the disease sinc...
https://www.youtube.com/watch?v=jTH3X3Pz2H0
travel_explore
web search NEUTRAL — Under the topic "Dengue Fever: A Brief Overview," in the first paragraph, please write the name of the species in italics.The paper titled "Thermal Stress and Dengue Fever: Exploring the Correlation b…
https://www.qeios.com/read/J6AS8E
help
Claim 4: “Starting in 2016, the city [Medellín] planted nearly 900,000 trees and 2.5 million plants along city streets, walls and roofs to create "green corridors."”
INSUFFICIENT EVIDENCE
No evidence was found after searching for the specific tree and plant counts for Medellin's green corridors.
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Claim 5: “some regions now enduring 50 more heat-stress days annually than in 1950”
CORROBORATED
Multiple independent sources (Stanford, Sözalt, and Africanews) confirm that some regions are experiencing approximately 50 more heat-stress days per year compared to historical baselines (1950s/1970s).
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wikipedia NEUTRAL — Overtoun Bridge is a category B-listed structure over the Overtoun Burn on the approach road from the west to Overtoun House, near Dumbarton in West Dunbartonshire, Scotland. It was completed in 1895,…
https://en.wikipedia.org/wiki/Overtoun_Bridge
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wikipedia NEUTRAL — The Blue Grotto (Italian: Grotta Azzurra) is a sea cave on the coast of the island of Capri, southern Italy. Sunlight shining through an underwater cavity is reflected back upward through the seawater…
https://en.wikipedia.org/wiki/Blue_Grotto_(Capri)
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wikipedia NEUTRAL — The International Federation for Information Processing (IFIP) is a global organisation for researchers and professionals working in the field of computing to conduct research, develop standards and p…
https://en.wikipedia.org/wiki/International_Federation_for_I…
+ 3 more evidence sources
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Claim 6: “reflective white roofs... could potentially help more than a billion people currently living in informal settlements globally, a figure that's expected to double in 30 years”
CORROBORATED
Multiple sources confirm that over 1 billion people live in informal settlements. One source specifically mentions the UN expectation that this number will grow to 3 billion (tripling) over the next 30 years, which aligns with the claim's projection of doubling or more.
travel_explore
web search NEUTRAL — These people, who populate informal settlements and slums, live in unstable dwellings and in communities where few services are provided. “Housing reflects the inequalities shaping people’s daily live…
https://news.un.org/en/story/2025/07/1165476
travel_explore
web search NEUTRAL — More than 1 billion people live in informal settlements. The United Nations expects this number to grow to 3 billion over the next 30 years.Most informal settlements are located in the tropics. Here i…
https://theconversation.com/1-billion-people-left-dangerousl…
travel_explore
web search NEUTRAL — Global Scale. Over 1 billion people currently live in informal settlements worldwide. By 2025, this number will reach 1.4 billion. Regional Distribution: Central/South/East/Southeast Asia: 589 million…
https://mkostarev.com/projects/informal_settlements.html
info
Claim 7: “a Stanford Doerr School of Sustainability project testing one of the simplest, cheapest tools available for lowering sweltering temperatures inside homes by as much as 5 degrees Fahrenheit”
SINGLE SOURCE
The provided evidence for this claim consists of irrelevant search results regarding 'Alliant Energy' in Iowa and does not mention the Stanford Doerr School of Sustainability or reflective paint.
travel_explore
web search NEUTRAL — Beaver Station - Alliant Energy is located in Clinton, Iowa. At this location, Beaver Station - Alliant Energy employs approximately 6 people. This business is working in the following industry: Elect…
https://www.allbiz.com/business/alliant-energy_121W-800-255-…
travel_explore
web search NEUTRAL — Alliant Energy located at 4th Ave N, Clinton, IA 52732 - reviews, ratings, hours, phone number, directions, and more.
https://www.chamberofcommerce.com/business-directory/iowa/cl…
travel_explore
web search NEUTRAL — Alliant Energy Corporation at 2001 Beaver Channel Pkwy, Clinton, IA 52732: store location, business hours, driving direction, map, phone number and other services.
https://www.hoursguide.com/alliant-energy-corporation/clinto…
schedule
Claim 8: “the city reported average temperatures fell by 2 degrees Celsius after three years”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 9: “Europe, the world's fastest-warming continent”
CORROBORATED
Five independent news organizations (Krdo, Deutsche Welle, Al Jazeera, France24, and Phys) all report that Europe is the fastest-warming continent in the world.
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cross reference SUPPORTS — Europe... the fastest-warming continent in the world
https://krdo.com/news/national-world/cnn-world/2026/08/03/hu…
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cross reference SUPPORTS — Europe is the fastest-warming continent in the world
https://www.dw.com/en/copernicus-climate-june-july-temperatu…
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cross reference SUPPORTS — Europe... is the world's fastest-warming continent
https://www.france24.com/en/europe/20260526-why-is-europe-he…
+ 2 more evidence sources
info
Claim 10: “The summer of 2026 has brought dangerous heat waves to broad swaths of India, South America, North America and Europe”
SINGLE SOURCE
The claim is mentioned in a Stanford-related web search result. However, other search results for '2026' are irrelevant (medical articles about gout) and do not corroborate the specific heat wave events of summer 2026.
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wikipedia NEUTRAL — India, officially the Republic of India, is a country in South Asia. It is the world's seventh-largest country by area and the largest by population. Bounded by the Indian Ocean on the south, the Ara…
https://en.wikipedia.org/wiki/India
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wikipedia NEUTRAL — North Sentinel Island is one of the Andaman Islands, an Indian archipelago in the Bay of Bengal. A protected area of India, it is home to the Sentinelese, an uncontacted indigenous tribe who have defe…
https://en.wikipedia.org/wiki/North_Sentinel_Island
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wikipedia NEUTRAL — South India, also known as Southern India or Peninsular India, is the southern part of the Deccan Peninsula in India encompassing the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telang…
https://en.wikipedia.org/wiki/South_India
+ 3 more evidence sources
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Claim 11: “In major U.S. cities, heat wave frequency has tripled from two events per year to six”
CORROBORATED
Three independent sources (LinkedIn curation, Battlbox, and Weather.com) explicitly state that heat wave frequency in major U.S. cities increased from an average of two per year in the 1960s to six per year in recent decades, citing the EPA.
travel_explore
web search NEUTRAL — Quick Answer: In major U.S. urban areas, heat waves now occur an average of six times per year. This is a significant increase from the average of two heat waves per year during the 1960s.
https://www.battlbox.com/blogs/outdoors/how-often-do-heat-wa…
travel_explore
web search NEUTRAL — The frequency of heat waves in major U.S. cities has increased from an average of two per year in the 1960s to six a year during the 2010s and 2020s, according to the U.S. Environmental Protection Age…
https://weather.com/news/climate/news/2023-05-09-climate-cha…
travel_explore
web search NEUTRAL — – The average frequency of heat waves rose from two per year in the 1960s to six per year in the 2010s and 2020s. – Heat waves now last about four days, a day longer than in the 1960s.
https://www.linkedin.com/posts/curation-corporation_heat-wav…
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.