ExtraLiT

In the Netherlands, parks are becoming quiet hubs of circular energy thanks to mini biogas domes — compact digesters that sit half-sunken in the landscape, turning everyday organic waste into low-impact power. These domes are cleverly designed to be fed with food scraps from nearby cafés, grass clippings from city gardeners, and even dog waste collected in compostable bags by park visitors. Inside, microbes break down the material in sealed chambers, producing methane gas which is funneled through underground lines to light up nearby lamps and pathways.

The methane burns with a soft, blue glow — enough to illuminate benches, garden paths, or bike stops without drawing from the national grid. It’s not flashy, but it’s deeply effective: turning localized waste into localized light. These small domes are often paired with educational boards that explain the digestion process, making the tech transparent and sparking curiosity among parkgoers.

The system also creates a subtle behavioral shift. People start thinking about waste as a fuel, not just trash — tossing leftovers or bagged pet droppings into these collection slots becomes an act of contribution. Maintenance is low, odors are contained, and the domes blend into the natural layout of the space.

This quiet innovation reflects the Dutch ethos of small-scale, decentralized sustainability — not every power solution needs wind turbines or solar fields. Sometimes, it's a dome in the grass gently lighting the way with yesterday’s sandwich crusts and today’s dog walks.

At just 14 years old, Sirish Subash has done what even major food safety organizations are still striving to perfect — he built an AI-powered handheld device that can instantly detect harmful pesticide residues on fruits and vegetables.
When told to “wash his fruits before eating,” Sirish didn’t just follow instructions — he asked why. That simple question led to an 11-month journey of scientific discovery and the birth of Pestiscand, a groundbreaking innovation that’s changing how we view food safety.
Using spectrophotometry — a technology typically found in advanced laboratories — Pestiscand connects to a smartphone and uses artificial intelligence (AI) to scan and identify pesticide contamination on produce in seconds. This makes it portable, affordable, and accessible, putting cutting-edge food safety technology in the hands of everyday consumers.
His breakthrough invention won the $25,000 Grand Prize at the 3M Young Scientist Challenge, positioning him as one of the world’s youngest and brightest minds in scientific innovation.
Sirish’s journey reflects the power of curiosity, innovation, and youth-driven science, proving that the next wave of AI-based sustainability and food tech solutions is being led by the next generation of changemakers.