When 412 Food Rescue noticed a lot of smaller food donations were slipping through the cracks, they designed an app that makes it easy for volunteers to pitch in.
It does seem impossible that somebody is separating paper receipts from soda cans. But we can assure you, your recycling is getting sorted. And the whole system is pretty high-tech.
That fleet of Google Street View cars you see roaming Pittsburgh isn't just collecting images for Google Maps. Some cars are actually helping detect natural gas leaks under the city's streets.
Threats from pests, pesticides, diseases and habitat loss are all putting bees in a tough spot. But researchers have some new ideas for using technology to get bees back on track.
Many industries in the U.S. have cut their carbon footprints in recent years, but transportation remains one sector where emissions are still increasing.
