![A row of small plants grow in a greenhouse.](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/66a14f160de6faf21a422e06_smart-soil-water-scarcity.jpg)
Agriculture uses 70% of the world’s freshwater supply — but new 'smart soil' could dramatically reduce that
Professors at the University of Texas at Austin have engineered a new type of gel-infused soil that helps plants water and feed themselves.
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Stop washing your clothes this way – it's harming the environment!
Laundry might seem like one of the most run-of-the-mill chores, but its environmental impact can be dramatic.
Read More![A four-legged robot ambulates across a grey, rocky beach in Italy](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/669ffe54cb02563f88305f0c_vero-litter-cleaning-dog-robot.jpg)
Watch: This 'robot dog' has vacuums for paws — and cleans litter from Italy's beaches
The cigarette butt-sucking robot is the first to use four legs concurrently to complete a task.
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How electric harps are protecting honey bees
By 2021, Michel Costa had become a frustrated veteran of an obscure yet devastating war in Europe. The enemy: invasive Asian hornets, which had been massacring his honey bees by the thousand.
Read More![Two side-by-side screenshots of a YouTube video. One one side is a close up of tools soaking in vinegar and ketchup. On the other side, freshly cleaned tools sit atop a workbench.](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/6696e0b5695fb92c1f90a6bf_rust-removal-hack-kethup-vinegar.jpg)
Mechanic shares 'leftovers hack' to clean your rusty tools: 'I didn't realize it was THIS easy'
The YouTube mechanic shares a money-saving hack that uses kitchen staples to remove ‘every speck’ of rust from metal objects.
Read More![The AIDS virus (yellow), infecting a human cell](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/668ebb6e11373b5836a462b8_hiv-breakthrough-drug-trial-injection.jpg)
HIV breakthrough: Drug trial shows injection twice a year is 100% effective against infection
A large clinical trial in South Africa and Uganda has shown that a twice-yearly injection of a new pre-exposure prophylaxis drug gives young women total protection from HIV infection.
Read More![The Sea Change hydrogen-powered ferry sets sail in the San Francisco Bay at sunset](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/66916cce43f35909a439654c_hydrogen-fueled-ferry-san-francisco.jpg)
World's first hydrogen-fueled ferry sets sail in San Francisco: 'You can actually drink the exhaust'
San Francisco's new Sea Change ferry is officially in service, emitting only water vapor that can be recycled throughout the vessel.
Read More![Orange seats inside a subway car](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/668fdea8f0ab581104353470_these-u-s-cities-have-the-best-public-transit.jpg)
Ranked: These are the top 10 best U.S. cities for public transportation
Only three of the top 10 transit systems are in the nation's top 10 most populous cities. Good transit spans the country.
Read More![Irene Xagoraraki leads an environmental virology lab at Michigan State University.](https://cdn.prod.website-files.com/5f6cc9cd16d59d990c8fca33/667057984057adbc3ede51f2_wastewater-surveillance-reveals-pathogens.jpeg)
The power of poop: Detroit's method for early disease detection is saving lives and inspiring other cities
Wastewater surveillance hit the big time during the height of the COVID-19 pandemic, when officials started using this technique to monitor local virus levels.
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