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PASSIVE COOLING SYSTEMS
In 2024, scientists tested a zigzag-shaped wall prototype; it was up to 3.1°C cooler than a conventional radiative-cooling wall in outdoor tests- In 2024, scientists built a window that kept a model house about 7°C cooler, without electricity or blocking the view
- In 2023, scientists built a rooftop tile that opens its cooling vents when hot and closes them when cold, using no electricity and cutting cooling costs 3.1-fold
- A road in Surrey could soon send its summer heat 100 metres beneath the surface, store it underground and bring it back during winter, turning geothermal energy into a defense against potholesWhat if roads could store summer heat and use it to prevent winter damage? A University of Surrey trial is exploring exactly that. Its geot...17 Aug, 2026, 09.38 PM IST
- In 2011, USGS researchers began studying Lake Erie's fish and seasonal hypoxia across a multi-year project. 15 years later, the findings showed fish crowding areas near 2–3 mg/L oxygen, revealing an unexpected shift at the edges of low-oxygen zonesLake Erie’s seasonal hypoxia is changing where fish gather. For years, scientists watched oxygen levels fall and fish move around the lake....13 Aug, 2026, 07.02 PM IST
- Funding, cooling and healthcare: Experts break down India's new heatwave disaster statusIndia’s recognition of heatwaves as a notified natural calamity could unlock dedicated disaster funds for states to strengthen heat action ...12 Aug, 2026, 08.33 AM IST
- German scientists created a sponge-like material that could pull 1.8 liters of drinking water from dry air every day, turning desert air into a potential drinking-water sourceResearchers have developed a groundbreaking material that can absorb moisture from arid air and act as a highly efficient coolant for air c...08 Aug, 2026, 06.39 PM IST
- Sonam Wangchuk's Ladakh home is built without concrete and has waterless sanitation system. It stays naturally warm even in winterSonam Wangchuk, the engineer and education reform campaigner who recently completed his hunger strike seeking changes to the examination sy...02 Aug, 2026, 07.58 PM IST
- These windows keep homes cool by 5°C: Scientists develop special glass that reduces AC use and electricity billsNew transparent cooling technologies are being developed for windows. These advanced coatings reflect unwanted solar heat while allowing in...09 Jul, 2026, 03.29 PM IST
- Europe can’t just air-condition its way out of the heatwave meltdownEurope's infrastructure, built for cold, is struggling with record heatwaves. From buckling train tracks and melting roads to hospitals can...01 Jul, 2026, 07.14 PM IST
- Growing heat needs affordable coolingAs record-breaking heatwaves sweep across Europe and Asia, the spotlight is cast on the urgent necessity for innovative cooling strategies ...26 Jun, 2026, 10.55 PM IST
- Scientists just made an all-silk cooling textile that reflects 94.8% of sunlight and lowers skin temperature by 4.3 °CScientists have engineered a revolutionary silk fabric, dubbed SilkNT, that cools the skin by an impressive 4.3°C without any batteries or ...23 Jun, 2026, 05.01 PM IST
- Forget ACs: This Delhi couple's home stays cool even in 45°C heat. Here's how they did it naturallyIn Delhi's sweltering heat, one couple's 40-year-old home stays cool without heavy AC reliance. Their residence utilizes traditional archit...03 Jun, 2026, 03.38 PM IST
- Megacity heatwaves are now a fatal nightmareCities are becoming dangerous places at night due to rising temperatures. Lack of cool nights strains the body, increasing risks of serious...03 Jun, 2026, 08.44 AM IST
- BPTP to invest Rs 1,200 crore in developing Gurugram projectBPTP Limited is investing Rs 1,200 crore in a new luxury residential project in Gurugram's Sector 66. The development will feature 504 resi...02 Jun, 2026, 05.19 PM IST
- No AC needed! What is this 'smart paint' developed by scientists that reflects 97% of sunlight & even collects water from air?Scientists have developed an experimental "smart paint" that reflects up to 97% of sunlight, significantly cooling surfaces and reducing th...31 May, 2026, 12.50 PM IST
- Heat, certainly not part of cool Viksit BAs India grapples with an unprecedented heatwave, temperatures have reached alarming highs. The implications of this extreme weather extend...27 May, 2026, 12.18 AM IST
- Swiggy’s riders in ‘cool jackets’? What’s really going on amid summer heatwaveSwiggy is providing delivery partners with special cooling vests. These vests help riders manage extreme heat during deliveries. The initia...30 Apr, 2026, 04.06 PM IST
- Hidden pipes, sandstone walls: How our ancestors kept interiors cool without AC, fanAncient Indian architecture employed ingenious, nature-based cooling systems long before modern technology. Structures like Lotus Mahal and...19 Apr, 2026, 10.18 AM IST
- The Best Time of Day to Close Curtains to Keep Rooms CoolSimple choices can keep homes cool during summer heat. Experts advise closing curtains early to block sunlight. This prevents heat from ent...18 Apr, 2026, 01.13 PM IST
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