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Admit it, you're curious: This is how cow poop becomes energy.

An unexpected energy source may be hiding in plain sight.

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Gates Foundation: The Story of Food

Let’s get straight to the facts: A dairy cow produces around 112 pounds of wet manure every day.

Even on a farm with only 187 cows (the U.S. average), that’s nearly 21,000 pounds of cow poop every single day.

Cows produce around 112 pounds of wet manure every day. Image via iStock.


Other livestock also produce staggering amounts of waste. According to National Geographic, the 2.3 million hogs in rural North Carolina’s Duplin County “generate twice as much waste each day as the city of New York.” Holy, um, hog.

Usually, this waste is a big nuisance for farmers. It takes up space, it smells, it releases methane into the atmosphere ... the list goes on.

What if there were a way to harness all that poo for good?

Turns out there is.

The concept is simple, and the technology has been around for decades: Animal waste is collected in a closed container and broken down by bacteria through anaerobic digestion. The resulting methane gas (which naturally occurs in animal waste and would otherwise be released as a harmful greenhouse gas) is then captured and either used for energy on the farm or piped to a power plant in the area.

Poop goes in, usable energy comes out.

Waste must be collected and stored in a closed container to capture the methane. Image via iStock.

Better yet, the energy obtained from the methane gas isn’t the only benefit of using this system. Other byproducts of a biodigester on a dairy farm, for example, include: liquid waste, which can be used for fertilizer or cycled back into the digestion process; fibrous material, used for compost or even animal bedding; and waste heat, used to warm homes and other buildings on-site.

Converting animal waste to energy isn’t a technology of the future; it’s already in use all over the world.

In Colorado, the Heartland Biogas project processes both animal and food waste, sending the resulting methane to an interstate pipeline. According to NPR, the facility can process up to 1.7 million gallons of waste at a time.

Image via iStock.

In North Carolina, hog farmers are generating biogas from waste lagoons — a mixture of solid and liquid waste typically held in uncovered containers. Covering these waste pits allows farmers to capture the valuable methane gas and drastically reduces the overpowering odor these facilities are known for.

In Germany, the Munich Zoo has a small biodigestion program that converts animal waste (mostly from the elephants) to biogas, which fulfills a percentage of the zoo’s electricity needs. The waste heat, in this case, is used to warm the gorilla enclosure. Other zoos around the world, including in Detroit and Toronto, are adopting similar approaches.

A baby elephant in the Munich Zoo, where waste is converted to energy. Image by Andreas Gebert/AFP/Getty Images.

Of course, biodigesters aren't the solution for all of our energy needs.

For one, they're incredibly expensive to set up (so much so that the cost is prohibitive for most farmers). According to PBS, even a primitive digester only makes financial sense on a farm with 2,000 cows or more. But luckily, some farmers are able to reap the benefits without paying too high of a cost (such as those located close enough to a large biodigestion operation like Colorado's Heartland facility).

Many critics also point out that converting waste to energy doesn't solve our waste issue at its root — if you're putting food scraps in a biodigester, it would have been better to feed those scraps to humans. If you're putting animal waste in a biodigester, you must consider the resources it took to raise those animals and whether they would have been better spent on less intensive crops for human consumption.

But if we're going to make any progress in tackling the world's energy crisis, utilizing the waste we're already creating is a great place to start.

via Chewy

Adorable Dexter and his new chew toy. Thanks Chewy Claus.

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Every holiday season, millions of kids send letters asking for everything from a new bike to a pony. Some even make altruistic requests such as peace on Earth or helping struggling families around the holidays.

But wouldn’t the holiday season be even more magical if our pets had their wishes granted, too? That’s why Chewy Claus is stepping up to spread holiday cheer to America’s pets.

Does your dog dream of a month’s supply of treats or chew toys? Would your cat love a new tree complete with a stylish condo? How about giving your betta fish some fresh decor that’ll really tie its tank together?

Or do your pets need something more than mere creature comforts such as life-saving surgery?

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Artist captures how strangers react to her body in public and it's fascinating

Haley Morris-Cafiero's photos might make you rethink how you look at people.

Credit: Haley Morris-Cafiero

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Since its release in 2003, the Christmas-themed rom-com "Love Actually" captured hearts and became one of the most beloved holiday films of all time. True to its title, the film celebrated love—all kinds of love—as it actually is, and managed to maintain optimism without being overly saccharine. This, coupled with a truly stellar ensemble, made it so well received among audiences, despite the mixed reviews from critics.

Nearly 20 years later, the film’s writer and director Richard Curtis (who also brought us "Notting Hill" and "Bridget Jones’ Diary") reflects back on why it might have meant so much to so many people. As an artist who has made a name for himself creating enduring love stories, perhaps it’s no surprise that he feels it’s something the world is in constant need of.

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A metal detector hobbyist looking for treasure on the beach.

Joseph Cook, 37, is a popular metal detectorist on social media where he shares videos of the many treasures he finds on Florida beaches. But what’s even more engaging than his finds is the incredible excitement he brings to the hobby. It’s like watching Steve Irwin, but with a Florida accent.

Not only is his attitude infectious but he also makes a point of doing good when he finds lost items. He wears a necklace around his neck with multiple rings that he’s found to remind him of his mission to return lost treasures.

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Helen Mirren via WikiCommons/Morgan Freeman via WikiCommons

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When thinking back, there doesn't seem to be a woman's voice that you immediately associate with that divine superpower to captivate listeners. Before Freeman was the voice of God, there was James Earl Jones, the voice of Darth Vader. With his deep hearty bass-like voice, even Jones' laugh is so distinctive that you automatically attribute it to him.

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