The viral 'Trashtag Challenge' encourages people to clean up litter

There's a new viral challenge spreading across social media, and it's making the world a cleaner place.

The "Trashtag Challenge" is inspiring people on Twitter, Instagram, and Reddit to take a walk outside and clean up any litter they stumble upon.

To participate in the challenge, simply seek out a litter-filled area or overflowing trashcan, clean it up, and share before and after photos online using the hashtag #trashtag. It's incredibly wholesome.

The hashtag has been around for years, and in 2015 UCO, a company that makes gear for camping, hiking, and other outdoor activities, even started the #TrashTag Project to inspire people to work together to pick up 10,000 pieces of trash in the wilderness by October 2016. But the movement gained traction again over the weekend, and reposts that explain the challenge, like this one from @thescientistfacts, are helping spread the word. Read more...