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Green Technology
Green technology is technology that produces clean energy, helps repair environmental damages or offers solutions to wasteful practices.
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Why Solar Geoengineering Should be Part of the Climate Crisis Solution
The controversial technology of reflecting sunlight away from the planet could help blunt the worst impacts of climate change. Harvard University climate scientist David Keith weighs in.
Kernza: The Environment-friendly Wheat Crop that Wants to Feed the World
Kernza is a wheat-like grain that doesn't have to be replanted each year, making it the ideal crop to aid in the fight against climate change and help to feed the world.
Polymer SunBOTs Imitate Sunflowers to Create Maximum Solar Energy
These new devices may be used in the future to absorb more of the sun's energy than today's solar panels are capable of collecting.
'The Fighting Women' of Africa Collect Plastic to Build Schools
In Africa's Ivory Coast, a group of women saw a need and came together to collect plastic for recycling into bricks to build schools.
New Technology Turns a Sunny Day into Safe Water
A new technology can speed the purification of water using sunlight, potentially providing clean water to billions of people.
What Do the Numbers Inside Recycling Symbols on Plastic Items Mean?
There are seven different numbers you might see on a plastic container. And each number has its own meaning.
Have We Hit the Peak Recycling Point?
The forward momentum on recycling has stalled in the U.S. and other countries, but some experts say there's still potential for growth.
Cockroach Farms Turn Food Trash Into Treasure
Cockroaches are taking a big bite out of a Chinese city's trash problem.
Scientists Develop Quick-Growing Coral Method to Save Dying Reefs
Coral grows faster when it's cut or broken and scientists are taking advantage of that to replenish depleted reefs.
Bricks Made of Urine — Our Pee Is 'Liquid Gold'
Urine is so much more valuable than we think. Soon, we might be building houses with pee bricks.
Why Don't More Cities Require Green Roofs?
While green roofs make sense in a lot of ways, requiring their installation isn't as simple as it might seem.
Sweden Is Great at Turning Trash to Energy
Sweden puts less than 1 percent of its household trash into landfills, in part because it burns nearly half to generate heat and electricity.
Can Adding Sand to Beaches Save Them?
As sea levels rise with climate change, beaches are losing ground against ever-encroaching waters. Trucking in sand may seem like a good idea, but the evidence, while not yet conclusive, may show otherwise.
Water Shortage? Let's Lasso an Iceberg
People have floated the idea of towing icebergs to drought-stricken parts of the world for years. Sounds like a good idea, but how viable is it?
Step Aside Styrofoam — Make Way for Nanowood
While plastic such as Styrofoam may be cheap and convenient to use, it contributes to costly health issues and is an inconvenient pollutant that takes up to 500 years to biodegrade.
What Do Winemakers Do With Grape Waste?
Wine pomace — the portion of grapes left over from winemaking — has a variety of uses, from fertilizer to a nutrition-enhancing ingredient in foods.
Fog Provides Water in the World's Driest Zones
Fog harvesting has been going on in some form since ancient times, but scientists have been refining the method so people living in some of the most arid climates can have water.
Geoengineering: 5 Ways Science Wants To Alter the Climate
There's no easy fix for climate change so scientists are playing with altering the Earth's natural systems in hopes of slowing it down. What could possibly go wrong?
Geoengineering the Earth’s Atmosphere to Fight Climate Change Could Backfire
Human attempts to alter the Earth's natural systems could either successfully avert climate change or fail and cause even greater harm.
Robotic Sorting Could Be the Efficient Future of Recycling
In Colorado, a recycling robot uses artificial intelligence to sort through discarded cartons more efficiently.
China Flips Switch on World's Largest Floating Solar Farm
China, the world's largest emitter of CO2, is making steps to combat those emissions by creating the world's largest floating solar panel farm.
The Ambitious Proposal to Re-freeze the Arctic
Some scientists are proposing a massive array of wind-powered pumps to bring more Arctic water to the surface, so it can freeze and thicken existing sea ice.
Mini Turbine 'Wind Trees' Could Generate Power for Homes, Electric Cars
A French company has created a miniature wind turbine that looks like a tree and could provide enough energy for a house.
Postage Stamp-sized Device Traps More Solar Energy to Purify Water Faster
The big problem of cleaning water quickly and cheaply might just have been solved, thanks to this tiny gadget.
Precious Plastic Wants You to Build Your Own Plastics Recycling Center
And they're ready to help you do it, whether it's just you, your school, your company or your neighborhood.
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