Each one is real science, working today or in late-stage labs. Filter by the problem they solve.
A crystal material that can be printed like ink onto thin, light sheets - promising cheaper solar power than today's silicon panels.
Hydrogen made by splitting water with renewable electricity. When used as fuel, it releases only water vapour - no CO2.
Electric vehicles have zero tailpipe emissions. New recycling plants recover lithium, cobalt and nickel from old batteries for reuse.
Pipes deliver water drop by drop straight to plant roots, guided by soil-moisture sensors that water only when the soil is dry.
Machines that cool humid air until the water vapour condenses - literally pulling drinking water out of thin air.
Rooftop collection plus recharge pits, now with smart tank sensors that track stored water and predict how long it will last.
Crops grown in stacked indoor layers under LED grow lights, using nutrient-rich water instead of soil.
Drones and satellite images show exactly which plants are thirsty or sick, so farmers spray and water only where needed.
Packaging films made from seaweed or crop waste that break down naturally instead of lasting centuries like regular plastic.
Recovering gold, copper and rare metals from old phones and circuit boards instead of digging new mines.
AI models forecast solar and wind power, spot forest fires early from satellite images, and find energy waste in buildings.
Electricity networks with sensors and two-way communication that balance supply and demand in real time.