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LEACHING
In 1997, Sweden used copper-smelting slag beneath a road near Luleå; after 10 years, copper, nickel and zinc leaching had declined below recommended thresholds- Ted Bundy terror: Serial killer died 40 years ago, tally of victims continues to grow even in 2026
- Over 20,000 pieces of trash removed from Yellowstone’s thermal pools in 2026: Could the visitors’ waste harm the hot springs into changing color?
- In 1995, New York turned discarded milk jugs and detergent bottles into a pier deck; 2 years later, the recycled plastic had held its key engineering propertiesThe 1990s marked the beginning of an intriguing investigation into recycled plastic lumber as a robust replacement for timber. Crafted chie...19 Oct, 2026, 03.50 PM IST
- In the 1890s, a new gold process helped turn Mercur, Utah, into a boomtown of over 2,500; by 1913, the mine had closed, and the original townsite was abandoned, though mining later resumedIn the late 19th century, Mercur, Utah, became an influential mining hub fueled by new gold extraction methods, notably cyanide processing ...18 Oct, 2026, 01.10 PM IST
- In 2019, a South African town opened Africa's first plastic road, the 300-metre stretch contains 700 kg of recycled plasticThe road was constructed using a special process in which waste plastic was converted into pellets before being added to the asphalt mixtur...09 Oct, 2026, 10.47 PM IST
- A study says your brain shifts attention when plans change: How it chooses what matters nextA University of Iowa study looked at how the brain makes decisions when familiar rules no longer provide clear answers. Researchers found t...07 Oct, 2026, 09.27 PM IST
- How did scientists trap a ‘forever chemical’ linked to US military sites?A USDA-led study found that specially produced biochar retained more than 99% of PFOS in laboratory soil experiments. The same research pro...04 Oct, 2026, 11.02 AM IST
- Copper prices may surge another 50%, predicts Deutsche Bank; supply to users could exhaust by 2028Copper prices could surge further as historically low inventories, US stockpiling and constrained mine supply intensify competition for spo...29 Sep, 2026, 12.30 PM IST
- In 2003, Florida reused 6,000 tons of concrete rubble in Pensacola Bay: The material helped build a 7-acre oyster reef, and seagrass later spread to 2.5 acresDowntown Pensacola has witnessed an inspiring transformation through Project GreenShores, which repurposed recycled concrete rubble into a ...24 Sep, 2026, 02.30 PM IST
- In 2024, Arizona put 100% recycled glass beneath a 23-mile interstate expansion; the unusual material helped protect 19 sets of existing highway culvertsWhen Arizona widened Interstate 17, engineers faced a problem that drivers would never notice. Beneath the planned expansion were 19 sets o...18 Sep, 2026, 07.30 PM IST
- Blanch fresh spinach for exactly 2 minutes, then plunge it immediately into ice water; this step prepares the leaves for 10–12 months in the freezerBlanching spinach for two minutes stops enzymes that degrade quality. This quick process prevents spoilage and maintains color and taste in...17 Sep, 2026, 01.30 PM IST
- Portland man buys 1.2 acres for his family’s dream home. Then he discovered up to 75,000 illegally dumped tiresIn Southeast Portland, Khanh Tran's ambition to build his family's dream home faces an unexpected challenge. He uncovered thousands of ille...16 Sep, 2026, 10.23 PM IST
- Indian scientists develop a new concrete using human waste to make it significantly stronger than conventional cementScientists have found that biochar made from treated human waste, or faecal sludge, can partially replace cement in concrete and improve it...09 Sep, 2026, 04.48 PM IST
- New Jersey sank 397 obsolete army tanks and armored vehicles from 1994 to 1997 in 40 to 140 feet of water; a five-year study found 432,000 animals of 145 species per square metre of reef habitatIn a remarkable initiative, obsolete US Army tanks were intentionally submerged off the New Jersey coast, creating vibrant artificial reefs...09 Sep, 2026, 01.00 PM IST
- In 2020, NTU used orange peel to recycle spent lithium-ion batteries; the process recovered about 90% of cobalt, lithium, nickel, and manganese from old cellsResearchers have found orange peels can recover metals from dead batteries. This method extracts valuable cobalt, lithium, nickel, and mang...08 Sep, 2026, 07.00 PM IST
- Copper hits new peak of $14,533/metric ton. Can its reddish glow brighten even further?Copper prices hit a record high of $14,533 per metric ton as tight mine supply, a weaker dollar and structural demand from electrification,...08 Sep, 2026, 11.55 AM IST
- Why battery recycling is crucial for protecting local ecosystems and securing a sustainable clean energy futureImproper disposal of used batteries can lead to environmental hazards due to toxic metals contained within them. Recycling these batteries ...07 Sep, 2026, 02.10 PM IST
- RMIT engineers mixed 1% recycled cigarette butts into fired-clay bricks, and the bricks matched standard strength while cutting firing energy by 10%In Melbourne, engineers are pioneering a groundbreaking technique to integrate discarded cigarette butts into building bricks. This eco-fri...02 Sep, 2026, 01.30 PM IST
- Miami researchers tested concrete that replaced sand with leaded CRT glass; a biopolymer helped limit lead leaching before durability damage raised concernsResearchers explored using toxic CRT glass in concrete mixtures. This hazardous waste contains significant amounts of lead, posing environm...30 Aug, 2026, 04.30 PM IST
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