Lucknow tops clean-air rankings; Delhi betters Mumbai and BengaluruLucknow secured the top position in the Swachh Vayu Sarvekshan 2026 rankings. Madhya Pradesh cities like Indore, Jabalpur, and Bhopal also ...
08 Sep, 2026, 12.11 AM IST
What if cleaning the air could make the world richer? UN-backed report reveals a $15 return for every $1 spent on pollution and climate actionA UN report highlights that addressing air pollution and climate change together offers economic gains. Coordinated actions could prevent m...
07 Sep, 2026, 10.47 PM IST
India's clean air rankings are out: Lucknow, Rourkela & Kalinga Nagar emerge at the top; see which cities made the list & which landed at the bottomLucknow, Rourkela, and Kalinga Nagar received awards for their clean air initiatives. These cities were honored for their performance under...
07 Sep, 2026, 10.22 PM IST
In 2003, Fort Lewis trained 25 public works staff to improve building energy use. 2 years later, the base had achieved 20-30% greater efficiency than the ASHRAE standardFort Lewis Army Base used staff training, equipment upgrades, renovation projects, and improved operating practices to strengthen building ...
03 Sep, 2026, 12.05 AM IST
Lake 223 acid rain experiment: Scientists added sulfuric acid to an Ontario lake for 17 years. The water recovered, but the fish didn’tA 17-year acid rain experiment at Canada’s Lake 223 changed its water chemistry and disrupted its ecosystem. Although the lake’s acidity ha...
02 Sep, 2026, 04.27 PM IST
In 2006, NASA and French Space Agency CNES launched a satellite in a joint mission to probe the properties of Earth's thin clouds and aerosolsIn 2006, NASA and French Space Agency CNES launched a satellite in a joint mission to probe the properties of Earth's thin clouds and aeros...
02 Sep, 2026, 02.30 AM IST
In 1995, Florida researchers coated a Cocoa Beach school roof white; over the following year, chiller energy use fell 10%, saving 13,000 kWh, while peak demand fell 35%A study conducted in Florida revealed that white roofs can drastically lower cooling costs, marking a significant achievement in the realm ...
01 Sep, 2026, 07.30 PM IST
A city of horns and highways: New model maps Delhi's noiseA new study developed a model for mapping environmental noise in Delhi. This model combines geographical and real-time traffic data for acc...
01 Sep, 2026, 05.00 PM IST
In 1996, West Virginia's BRWA and WVWRI developed a plan to treat Swamp Run’s acid mine drainage. 28 years later, 2 projects had dramatically improved the stream’s pH with lasting gainsSwamp Run in Upshur County, West Virginia, faced decades of water quality problems caused by acid mine drainage from buried coal refuse lef...
01 Sep, 2026, 12.20 AM IST
From ₹549 horse riding to ₹3,200 golf: Gurgaon resident says city has waterlogging, traffic and bad air, but offers a side most don’t know aboutGurgaon is often criticised for its traffic, waterlogging and air pollution, but a viral social media post has highlighted another side of ...
30 Aug, 2026, 11.49 AM IST
COVID lockdowns accidentally created an experiment scientists could never have deliberately run: What happens when the roads and buildings stay, but the people disappear?The COVID-19 lockdowns accidentally created a rare real-world experiment for scientists, as human activity suddenly dropped while roads, bu...
29 Aug, 2026, 07.59 PM IST
USDA field pilots replaced most woodchips with corn cobs in nitrate bioreactors; the 75% corn-cob beds removed nitrate up to 10 times fasterField pilots have demonstrated that corn cobs are highly effective in removing nitrates from farm drainage water. These innovative bioreact...
29 Aug, 2026, 07.30 PM IST
ET Startup Awards 2026 | Social Enterprise: Varaha delivers carbon dollars to smallholder farmersVaraha is helping farmers adopt sustainable farming practices such as regenerative farming, tree planting, biochar and enhanced rock weathe...
27 Aug, 2026, 06.00 AM IST
In 2023, researchers found shade cooled Singapore streets by 0.8°C across 20 sites. Today, vegetation is estimated to save 228 GWh of energy yearlySingapore's trees offer significant cooling benefits for city streets. Shaded areas were found to be cooler, reducing heat stress for peopl...
25 Aug, 2026, 05.18 PM IST
Delhi to halt construction from December 10 to January 20 to curb winter pollutionDelhi will ban all construction from December 10 to January 20. This measure aims to tackle worsening air pollution during winter months. L...
21 Aug, 2026, 01.56 PM IST
Pakistan significantly affects NCR, Punjab's annual PM2.5 concentration: ReportPakistan's transboundary pollution contributes nearly thirty-three percent to Delhi's annual PM2.5 levels. Local sources account for twenty...
20 Aug, 2026, 09.31 PM IST
Delhi-NCR vehicle owners alert: No new petrol, diesel or CNG LGVs below 3,500 kg from 2027; more models to come under new curb from 2028. Check who will be affectedDelhi-NCR regulations will mandate electric light goods vehicles from 2027. Only electric N1 light goods vehicles will be allowed to be reg...
20 Aug, 2026, 10.20 AM IST