Long before air conditioners, Americans used ‘white gold’ and other clever methods to keep themselves coolIn a time before air conditioning, Americans became innovative in their quest to stay cool. Architectural elements like high ceilings and s...
21 Aug, 2026, 07.54 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
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 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
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
In 2023, U.S. scientists created “cooling glass” that reflects 99% of solar energy and radiates building heat toward spaceA team of engineers at the University of Maryland has unveiled a revolutionary rooftop glass coating that offers remarkable cooling propert...
10 Aug, 2026, 05.29 PM IST
ET Prime Special Series: Multibagger or IBC - Part 70: Almost nobody tracks this company. That may be why its turnaround was missedVery few investors track this old auto supplier, and that may be exactly why its turnaround went unnoticed. This is a business that spent y...
10 Aug, 2026, 12.40 PM IST
In 2011, New York tried a simple way to beat peak summer heat by painting rooftops white; here’s how it helped cool citiesIn a proactive initiative starting in 2011, volunteers in New York City painted rooftops white to tackle the challenges of urban heat. This...
09 Aug, 2026, 10.15 AM IST
Rooftop rainwater could help cities stay cooler and cut heatwave days, study findsCollecting rainwater and spraying it on rooftops may cool cities during heatwaves. This system uses evaporative cooling to lower roof tempe...
08 Aug, 2026, 03.48 PM IST
Purdue University created paint so white that a coated surface stayed 8°F below the surrounding air at noonPurdue University researchers developed an ultra-white paint reflecting nearly all sunlight. This innovative paint keeps surfaces cooler th...
05 Aug, 2026, 05.37 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
Can chalk replace air conditioning? France is putting the idea to the testFrance is experiencing a surge in demand for crushed chalk as a cooling solution. This traditional cleaning powder is applied to windows, r...
30 Jul, 2026, 08.06 PM IST
In 2010, a study suggested the coolest solution to global warming might also be the simplest; a fresh coat of white paint could help cool the planet: How white roofs may reduce urban heat and support climate action?In 2010, a study suggested the coolest solution to global warming might also be the simplest; a fresh coat of white paint could help cool t...
28 Jul, 2026, 01.45 AM IST
Engage in the solar geoengineering debate: Why India must shape the rules before the sun goes dimSolar radiation modification offers potential climate solutions but demands careful governance. This technology could cool the planet while...
10 Jul, 2026, 11.04 PM IST
Top fashion brands have a supply chain battle against extreme India heatAs Indian garment factories contend with soaring temperatures, worker efficiency and health have been jeopardised. Epic Group's facility in...
09 Jul, 2026, 09.24 AM 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