Running is good for your health. Picking up litter is good for the planet’s health. Why not combine the two?

That’s the idea behind “plogging,” a new environmentally conscious fitness trend where people pick up rubbish while on a run. According to The Washington Post, this exercise-meets-eco-friendly activity started in Sweden and has since spread—primarily via social media—throughout Europe and into the U.S., Mexico, and beyond. On Instagram alone, there are now more than 10,000 posts tagged #plogging, which is a combination of “jogging” and “plocka upp” (Swedish for “pick up”).

“I read an article [about plogging] and realized I had wasted the last few years of my running life not doing it,” Laura Lindberg, a Hoboken, New Jersey, resident who first learned of plogging in February, tells SELF. “The next day I took gloves and a bag and started picking up garbage along the way. I found it to be really satisfying instead of just passing by litter and silently cursing the individual who put it there.”

Lindberg, 36, plogs solo four to five times a week and also plalks (walks and picks up trash—a more accessible cousin of plogging) almost daily with her two dogs, Ozzy and Alphie. She documents their hauls via @dogplog_hoboken.

Here’s what the trio found during a recent two-block pick-up:

Plogging brings awareness to just how much litter lines our streets, parks, and trails.

From water bottles and liquor bottles to dental flossers, diapers, and cotton swabs, “there’s no shortage of garbage every single day,” says Lindberg, who typically wears gardening gloves when she plogs, and draws the line at cigarette butts and “anything that looks like it could be urine in a bottle.” She stashes trash in plastic bags that she discards at the end of her routes, or drops individual pieces in city bins along the way.

“I’ve spent 30 minutes collecting two big bags of trash—all within 30 feet of my apartment,” Manchester, New Hampshire-based Abby Drake, who plogs multiple times a week, tells SELF. Drake, a self-described eco-conscious consumer, has been plogging for two months after she saw a Facebook video on the trend and realized: “This is something I could actively do to help.” Like Lindberg, she chronicles her plogging hauls via Instagram.

Here’s the pile of trash Drake collected on a 2-mile out-and-back run near her apartment. “Almost every 30 feet I found a Budweiser can,” she says. “It was like an Easter egg hunt.”

As for the rules of plogging? Well, there’s really only one: Throw away (or recycle, as appropriate) the trash you collect.

How often you plog, how much trash you gather each time, what types of trash you collect, and how you transport said trash is really up to you.