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DAYTIME COOLING
In 2025, Monash researchers developed a self-adaptive microporous ceramic; daytime cooling reached 19.5°C below ambient while nighttime overcooling was limited to 3.3°CScientists have unveiled an innovative ceramic designed for passive radiative cooling applications. This advanced material efficiently lowe...- Columbia Engineering built a pigment-free paint filled with microscopic air pores; it stayed 6°C below surrounding air during hot desert tests in ArizonaResearchers at Columbia University and Purdue University have unveiled an experimental paint-like coating that can cool surfaces to tempera...
- Phoenix swapped black asphalt for a reflective road coating; noon surface heat fell 12°F, but pedestrians faced higher radiant heatIn an effort to lower urban heat, Phoenix tested innovative reflective pavement coatings on its roads, revealing that treated asphalt kept ...
- In 2019, Buffalo scientists coated aluminum film with a cooling polymer; a small prototype cooled an enclosed box by 11°F by day and 20°F at nightScientists have engineered a cost-effective film utilizing aluminum foil combined with a polymer layer. This innovative film actively cools...
- In 2021, researchers built a two-layer polymer film that cools like skin; under direct sun, it stayed about 7°C below ambient with 150 W/m² cooling powerResearchers have created an advanced cooling film comprising two innovative layers that harmoniously integrate both radiative and evaporati...
- In 2025, researchers built a box from porous PMMA sheets that reflected 96% of sunlight; 80°F outdoor air measured 65.3°F inside without electricityInnovative materials scientists are exploring passive cooling techniques to lessen the demand for air conditioning. They have engineered a ...
- In 2023, Princeton researchers tested a naturally ventilated cooling box; it stayed below outdoor air while using radiative cooling and buoyancy-driven airflowResearchers have unveiled a groundbreaking cooling technique designed for buildings that eliminates the need for traditional air conditioni...
- In a 2025 study, Penn State researchers tested porous PMMA sheets that reflected 96.4% of sunlight; a test box stayed 14.7°F cooler than the outdoor airInnovative researchers have crafted a groundbreaking porous plastic sheet that cools without any electrical input. By reflecting sunlight a...
- In a 2011 Las Vegas test, a 15.24-cm wet roof pond lowered indoor peak operative temperature by about 8.5°C versus the outdoor maximumIn the summer of 2011, a groundbreaking building in Las Vegas experimented with roof pond cooling. Results indicated that wet roof ponds ef...
- Rains Raksha in India may not be enough to fight $250 billion heat billExtreme heat poses a significant economic threat to India's workforce and GDP. Lost labor hours and reduced productivity impact both worker...
- Scientists tested reflective pavement through an Australian summer, and the road surface stayed cooler, but midday radiant heat increased above itA western Sydney trial revealed reflective roads cool surfaces but raise pedestrian temperatures. This study tracked the trade-off over a y...
- Phoenix coated 36 miles of black asphalt with reflective coating to fight extreme heat. Road temperature dropped by 12°F, but pedestrians found a surprising side effectTo tackle the oppressive heat, Phoenix pioneered the use of lighter-toned roads, which successfully reduced surface temperatures significan...
- In 2017, CU Boulder engineers turned glass microspheres into a 50-microliter film; 10 to 20 square meters of it could help cool a family-sized houseA team of researchers has developed a groundbreaking thin film that cools surfaces without the need for electricity or water. By employing ...
- Illinois researchers tested a passive cooling film in Houston; treated metal roofs measured more than 40°F cooler in direct sunlightAs American summers heat up, public health risks escalate, prompting researchers to create an innovative coating that cools metal roofs by ...
- In a 2023 study in San Severo, six medicinal crops grew beneath tracking solar panels; deep shade cut evapotranspiration by 81.1% but reduced biomass by up to 48.8%A recent investigation conducted in Italy examined the effects of growing herbs beneath solar panels. The findings revealed a significant r...
- In 2024, Phoenix started its very first 24/7 cooling and heat respite center to provide life-saving refuge from extreme desert temperaturesIn 2024, Phoenix started its very first 24/7 cooling and heat respite center to provide life-saving refuge from extreme desert temperatures...
- Stanford ran water beneath mirror-like rooftop panels; they cooled it 3–5°C below the surrounding air by sending heat into spaceResearchers at Stanford have created innovative panels that cool water exclusively using sunlight and mirrors. These panels effectively ref...
- In 2024, scientists built a window that kept a model house about 7°C cooler, without electricity or blocking the viewEngineers in South Korea have developed an innovative smart window that cools spaces sans electricity. This remarkable glass not only refle...
- Extreme Heat Warning: Texas, Florida, other Southern states in US brace for triple-digit temperaturesScorching temperatures and oppressive humidity grip the southern United States. Heat indices are exceeding 105 degrees Fahrenheit in severa...
- Since 2025, University of Manchester researchers modelled 2,300 urban canal sections across Great Britain and Ireland. Now, the study shows canals can lower nearby temperatures by as much as 2.3°C during heatwavesUrban canals cooling: Urban canals provide a notable cooling effect on surrounding areas, particularly during heatwaves. This natural cooli...
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