I was a teenager on a cruise when I first saw ocean pollution up close. Late at night, I heard a noise over the railing. I looked down and saw crew dumping garbage into the ocean. A stream of trash stretching off toward the horizon. That image stuck with me.
This is Vertical Harvest. Sitting on half an acre of land, it produces as much food as an equivalent 250-acre farm. That’s a 500 times more efficient use of land than traditional farming. But if vertical farming is so great, why isn’t it more popular? And where and
What if every piece of plastic waste, like bottles, bags, even clothes, could be rebuilt from scratch, no sorting required? Not just melted and reshaped, but broken down to pure chemical building blocks and made new again. That’s what a new wave of recycling tech promises. At Northwestern University,
Caribbean beaches are ankle-deep in slimy, smelly seaweed. Wave after wave of sargassum is blanketing shorelines from Barbados to Cancún. It traps sea turtles. It smothers coral reefs. And it drives tourists away from islands that depend on them. This seaweed isn’t just crashing weddings on the beach. It’
Every time a subway screeches to a stop, we usually chalk it up to another moment in the daily grind … if we even notice it. Commuters pour out, new riders pile in. Just another day on the rails. But what if that screech, that everyday chaos, could do more than
When we talk about the circular economy, we picture batteries stripped for their metals, factory floor scraps spun into sweaters, and agricultural waste transformed into biogas. We don’t picture mucking out the barn to collect material for surgical masks and food packaging. Engineers are constantly looking for ways to
Imagine a world where the homes we live in, the clothes we wear, and even the sensors in our electronics weren’t manufactured, but grown. Mycelium, the root structure of fungi, is shaking up everything from sustainable construction to meatless bacon. It’s turning agricultural waste into walls, hemp into
Thorium reactors are like the solid-state batteries of nuclear power: vastly superior, yet forever on the horizon. But now, a Danish company is closer than ever to turning them into a reality. Its reactors are designed to deliver on thorium’s decades-old promise: a self-sustaining chain reaction that breeds fresh
Freshwater may soon flow from the depths of the ocean to drought-stricken coastal cities. A handful of companies are betting that crushing deep-sea pressures can replace the energy-hungry pumps and toxic chemicals that are desalination’s inconvenient truth. By going the extra quarter-mile into the ocean, they’re pioneering a
What if I told you your fridge — that humming box in the kitchen — could be cooled without gas, without chemicals … just magnets? It sounds futuristic, but researchers are already making it happen. It not only promises higher efficiency, but solves a critical problem with the status quo…yes, a critical
Heat from ice? It sounds like a joke—or maybe a paradox. But what if the future of warm, cozy homes lies in freezing water? As outlandish as it seems, an English research team is working on a heat pump that runs off actual ice … well, more like slushies. It’
CORRECTION: the original version stated that silver “price has tripled in the past three years.” It’s demand that tripled, not price. As renewable energy installations multiply across the globe, the first generation of solar panels, wind turbine blades, and lithium batteries is reaching the end of its lifespan and