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KEEP HOME COOL WITHOUT AIR CONDITIONING
A Manhattan office building began freezing water at night; the stored ice now helps cool it during peak summer demand- A 1960s house in South London is staying 10C cooler than outside without air conditioning during extreme heat. It acts like an insulated flask maintaining a cooler temperature indoors by keeping heat outside
- Long before air conditioners, Americans used ‘white gold’ and other clever methods to keep themselves cool
- Before air conditioning, America shipped lake ice as far as Kolkata; up to two-thirds melted en route, and the rest could cost 10 times more than beefFrederic Tudor embarked on an unprecedented journey by transporting ice from the ponds of New England to the sweltering climate of Calcutta...21 Aug, 2026, 01.10 PM IST
- 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...21 Aug, 2026, 01.00 PM IST
- Placing aluminium foil on windows: How this simple home trick works, its benefits and the right way to use it to keep rooms cooler in summersUsing aluminum foil to cover windows can efficiently reflect sunlight and minimize heat accumulation indoors. This budget-friendly trick se...19 Aug, 2026, 09.53 PM IST
- In 2025, U.S. researchers developed an air-conditioning system that stores cooling in a salt solution; a Miami simulation projected a 93% cut in peak electricity demandInnovative air conditioning technology now harnesses the power of saltwater solutions to store energy. Developed by researchers at NREL, th...19 Aug, 2026, 02.40 PM IST
- 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 testsEngineers have created a groundbreaking zigzag wall that cools itself through a unique design. This structure lowers its temperature by dir...19 Aug, 2026, 02.30 PM IST
- A reflective roof coating reduced peak roof temperature by 14.1°C and indoor temperature by 2.4°C; later research found evaporative cooling could add further benefitsInnovative roofing technologies are changing the game for building temperature regulation. By utilizing white reflective coatings, sunlight...19 Aug, 2026, 02.20 PM IST
- 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...19 Aug, 2026, 02.10 PM IST
- 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-foldInnovative engineers have created high-tech roof tiles that adjust themselves to optimize building temperatures automatically. By utilizing...19 Aug, 2026, 01.50 PM IST
- No AC in shops, no honking on streets, achar with every meal: Filipino woman shares 10 things that surprised her while slow travelling in SikkimA Filipino woman traveller offered an intriguing glimpse into the unique cultural landscape of Sikkim, noting that locals often possess Sou...19 Aug, 2026, 12.34 PM IST
- A cement-based paint that "sweats" water kept a model house more than 4.5°C cooler than conventional white paintInnovative researchers have unveiled a remarkable paint designed to keep buildings cooler by absorbing moisture. This advanced formula not ...18 Aug, 2026, 06.40 PM IST
- 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...18 Aug, 2026, 06.26 PM IST
- A fridge in the wrong part of your home may quietly consume more electricity; researchers explain whyRefrigerator placement significantly impacts household electricity bills. Room temperature around the appliance is the primary driver of en...18 Aug, 2026, 01.00 PM IST
- US heat wave could feel like 115°F as millions brace for dangerous daysA dangerous heat wave is affecting millions across the United States. Oppressive conditions are expected to continue into next week, with h...14 Aug, 2026, 09.34 PM IST
- How to cool down a hot car quickly without overworking the AC: Try this simple trick before you start drivingTo efficiently cool down hot cars, start by opening windows and a door on opposite sides to encourage airflow. Additionally, roll down the ...14 Aug, 2026, 06.14 PM IST
- In 2024, passengers endured 3.5 hours inside a Boeing 777 without air conditioning while it sat on the Athens tarmac. The incident revealed how little aviation law specifically protects travelers from extreme cabin temperaturesBoeing 777 Athens heat incident: A flight delay in Athens turned into a dire situation for passengers aboard a Boeing 777, who endured swel...13 Aug, 2026, 06.45 PM IST
- Tokyo used rooftop rainwater and AI-powered spraying to fight extreme urban heat; study finds potential to cool buildings and cut air-conditioning demand and reducing the intensity of heat wavesRooftop rainwater harvesting: Tokyo's rooftops may offer a new strategy for extreme heat management. Rainwater harvesting and roof sprinkli...10 Aug, 2026, 11.46 PM IST
- Austrian researchers 3D-printed porous ceramic cubes for passive cooling; one water-filled prototype cooled nearby air by nearly 7°C without electricityResearchers from Austria have created groundbreaking 3D-printed ceramic cubes designed for passive cooling applications. Utilizing the prin...10 Aug, 2026, 05.25 PM IST
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