3 Teens Win Global Earth Prize for Inventing Tamarind Powder That Easily Removes Microplastics

The winners with their Plas-Stick invention, Avyana Mehta, Ariana Agarwal, Vivaan Chhawchharia, and their teacher Minal Jain – credit, the Earth Prize, released

In mid-May, GNN reported that 3 teens from India had won a major continental science prize for their brilliant use of an ingredient in Indian cuisine as the basis for a microplastic filter.

Now, from Geneva comes the announcement that 16-year-olds Vivaan Chhawchharia, Ariana Agarwal, and Avyana Mehta, have claimed the Global Earth Prize in addition to the Asian one, as voted by 23,000 experts from dozens of countries around the world.

“Being named the Global Winners of The Earth Prize is incredibly special for all of us, especially as the first team from India to receive this recognition,” the trio said in a statement.

“What started as an idea between students has now been recognised among thousands of projects from around the world, which feels both surreal and deeply motivating.

Their grand prize-winning invention is called Plas-Stick, and used powdered tamarind seed as the base for an all-natural microplastic clumping agent. After a short agitation period, the clumped microplastic-tamarind mass can be removed with nothing more than a magnet.

Notably, Plas-Stick is the first-ever Global Winner of The Earth Prize from India.

Designed for use in shared water containers, the biodegradable powder binds invisible plastic particles into visible clumps that can then be easily removed with a handheld magnet, offering a simple and low-cost alternative to complex filtration systems.

The idea was sparked by the team’s studies in environmental science and a visit to a rural community, where they observed how drinking water is often stored in shared containers without access to advanced filtration systems.

Globally, over 2.2 billion people lack safely managed drinking water infrastructure, increasing reliance on stored water that may contain microplastics. Microplastics may be the most significant environmental and human health contaminant on Earth. Particles ranging in size from the 1/1 to 1/1,000th the width of human hair have been found virtually everywhere anyone has thought to look for them, including on the summit of Everest and the bottom of the Marianna Trench.

They have been recorded in worryingly high quantities in every human organ and tissue, including the brain and even placenta. Though the full gamut of toxic damage related to microplastic exposure isn’t fully known, what’s certain is that they act as strong endocrine disrupters.

Determined to create a solution that is both effective and accessible, Chhawchharia, Agarwal, and Mehta developed a system that requires no electricity or complex infrastructure. It in fact requires only a crop that’s already used widely in South Asian cuisine, which is both cultivated and thrives in the wild.

“Plas-Stick was designed to be simple, affordable and accessible, and this support allows us to take it beyond pilot schools and scale it to many more communities that need it most!”

Now following their Global Winner recognition, the team plans to scale the solution through decentralised production hubs and expand to rural communities across India, making safer drinking water more accessible across rural Indian communities and beyond.The Earth Prize is run by The Earth Foundation, a non-profit based in Geneva, Switzerland, founded during the School Strike for Climate in 2019. At a time when climate anxiety affects a majority of young people—59% reporting they are very or extremely worried about the environment—the Prize provides a pathway from concern to action, equipping students with the tools to develop tangible, real-world solutions. 3 Teens Win Global Earth Prize for Inventing Tamarind Powder That Easily Removes Microplastics

Read More........→June 02, 2026

70% Drop in Levels of Forever Chemicals Observed in Seabird Eggs Tracks Regulatory Success

Northern gannets on Bonaventure Island – credit, CC 3.0. BY-SA Bodoklecksel

Content of several “forever chemicals” in seabird eggs were found to have sharply decreased over the last 55 years by a team of scientists.

While first rising exponentially from during the 1960s, the chemicals, classed as PFAS, peaked in the 1990s before decreasing in line with regulatory oversight by North American governments.

PFAS are a class of chemicals that form water, stain, and heat-resistant coatings in multiple products which substantially contaminate environments around the world, and are linked to multiple detrimental health outcomes.

A study published in the journal Applied Toxicology that looked at PFAS concentrations in the eggs of northern gannets on Bonaventure Island found that the content of some of the most commonly used PFAS has fallen 70% and sometimes more.

These include perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), which fell 74% and 40% respectively. Concentrations of perfluorohexanesulfonic acid, (PFHxS) another of these chemicals, was also 70% lower from baseline.

“We see this incredible rise to a peak where concentrations seem to be higher than toxicological threshold for those birds, then it really decreases in a nice way,” Raphael Lavoie, a co-author and ecotoxicologist with Environment and Climate Change Canada, told the Guardian. “The regulations are having a good effect.”

The seabird subjects and the long study period were notable strengths. The 55 years of data spans the rise in PFAS production, and the eventual decline as the environmental groups and regulators caught on to the toxicity in the late 90s and early 2000s.

Bonaventure Island is the world’s largest northern gannet breeding colony. These pescatarian birds are directly exposed to PFAS contamination due to the island’s position near the St. Lawrence Seaway, which, being connected to the Great Lakes manufacturing centers north and south of the border, was exposed to substantial amounts of PFAS during the 20th century.

The PFAS got into the fish which got into the gannets and then into their eggs. Tom Perkins for the Guardian wrote that in the late 90s, the chemical corporation M3 dramatically scaled back its production of commercial PFAS in the face of regulatory scrutiny. In 2015, the chemical sector struck an agreement with the EPA to phase out production of PFOA and PFOS, while 6 years earlier at the United Nations’ Stockholm Convention, several of the chemicals tested for in the study were subjected to elimination.

This included PFOA and PFHxS, while PFOS was restricted in everything but firefighting foam.

The study is a comprehensive demonstration of how these regulations are working to reduce the toxic load presented by PFAS in the environment. PFAS are referred to shorthanded as “forever chemicals,” however, and so the authors stress the need for continual environmental and regulatory vigilance, since any similar chemicals entering the environment today will remain, presumably forever. 70% Drop in Levels of Forever Chemicals Observed in Seabird Eggs Tracks Regulatory Success

Read More........→June 01, 2026