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Steelmaking is a major source of emissions. These companies are racing to fix it.
Featured in sewers
182,000 Indians clean sewers largely by hand. These robots could help.
To transform manholes into robo-holes, the country must seek broader social change.
Scientists are scrutinizing city sewage to study our health
It's not just useless crap.
Sewage Could Help Power Our Homes
One of 10 insane ideas that just might save the world
Sewer Sensors Detect Homemade Bombs As They’re Being Made
Picking up on bomb ingredients after they've been flushed down the drain.
A Treasure Trove of Undiscovered Life: Raw Sewage
Raw sewage is apparently a gold mine for virologists in search of new quarry — it contains thousands of previously...
Future Robots Could Use Manhole Covers To Navigate Through Cities
Forget GPS and streaming video — future legions of city-dwelling robots may navigate using manhole covers. The ubiquitous round metallic covers...
Here’s What the Future of America’s Infrastructure Might Look Like
25 new technologies that will transform America's systems
Your Next Package Might Be Delivered Via Sewer Pipes
If you live in a big city, you probably know how dangerous bike messengers can be, suicidally zipping in and...
Your Sewer on Drugs
Sewage is more than just filth. It’s evidence of our worst habits, everything from caffeine to cocaine, all ingested and flushed down the toilet. Now scientists are using wastewater to drug-test entire cities, and the results are sobering
