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A juice company dumped orange peels in a national park. Here's what it looks like now.

This article originally appeared on 08.23.17


In 1997, ecologists Daniel Janzen and Winnie Hallwachs approached an orange juice company in Costa Rica with an off-the-wall idea.

In exchange for donating a portion of unspoiled, forested land to the Área de Conservación Guanacaste — a nature preserve in the country's northwest — the park would allow the company to dump its discarded orange peels and pulp, free of charge, in a heavily grazed, largely deforested area nearby.

One year later, one thousand trucks poured into the national park, offloading over 12,000 metric tons of sticky, mealy, orange compost onto the worn-out plot.


The first deposit of orange peels in 1996. Photo by Dan Janzen.

The site was left untouched and largely unexamined for over a decade. A sign was placed to ensure future researchers could locate and study it.

16 years later, Janzen dispatched graduate student Timothy Treuer to look for the site where the food waste was dumped.

Treuer initially set out to locate the large placard that marked the plot — and failed.

"It's a huge sign, bright yellow lettering. We should have been able to see it," Treuer says. After wandering around for half an hour with no luck, he consulted Janzen, who gave him more detailed instructions on how to find the plot.

When he returned a week later and confirmed he was in the right place, Treuer was floored. Compared to the adjacent barren former pastureland, the site of the food waste deposit was "like night and day."

The site of the orange peel deposit (L) and adjacent pastureland (R). Photo by Leland Werden.

"It was just hard to believe that the only difference between the two areas was a bunch of orange peels. They look like completely different ecosystems," he explains.

The area was so thick with vegetation he still could not find the sign.

Treuer and a team of researchers from Princeton University studied the site over the course of the following three years.

The results, published in the journal "Restoration Ecology," highlight just how completely the discarded fruit parts assisted the area's turnaround.

The ecologists measured various qualities of the site against an area of former pastureland immediately across the access road used to dump the orange peels two decades prior. Compared to the adjacent plot, which was dominated by a single species of tree, the site of the orange peel deposit featured two dozen species of vegetation, most thriving.

Lab technician Erik Schilling explores the newly overgrown orange peel plot. Photo by Tim Treuer.

In addition to greater biodiversity, richer soil, and a better-developed canopy, researchers discovered a tayra (a dog-sized weasel) and a giant fig tree three feet in diameter, on the plot.

"You could have had 20 people climbing in that tree at once and it would have supported the weight no problem," says Jon Choi, co-author of the paper, who conducted much of the soil analysis. "That thing was massive."

Recent evidence suggests that secondary tropical forests — those that grow after the original inhabitants are torn down — are essential to helping slow climate change.

Photo by Mario Tama/Getty Images.

In a 2016 study published in Nature, researchers found that such forests absorb and store atmospheric carbon at roughly 11 times the rate of old-growth forests.

Treuer believes better management of discarded produce — like orange peels — could be key to helping these forests regrow.

In many parts of the world, rates of deforestation are increasing dramatically, sapping local soil of much-needed nutrients and, with them, the ability of ecosystems to restore themselves.

Meanwhile, much of the world is awash in nutrient-rich food waste. In the United States, up to half of all produce in the United States is discarded. Most currently ends up in landfills.

The site after a deposit of orange peels in 1998. Photo by Dan Janzen.

"We don't want companies to go out there will-nilly just dumping their waste all over the place, but if it's scientifically driven and restorationists are involved in addition to companies, this is something I think has really high potential," Treuer says.

The next step, he believes, is to examine whether other ecosystems — dry forests, cloud forests, tropical savannas — react the same way to similar deposits.

Two years after his initial survey, Treuer returned to once again try to locate the sign marking the site.

Since his first scouting mission in 2013, Treuer had visited the plot more than 15 times. Choi had visited more than 50. Neither had spotted the original sign.

In 2015, when Treuer, with the help of the paper's senior author, David Wilcove, and Princeton Professor Rob Pringle, finally found it under a thicket of vines, the scope of the area's transformation became truly clear.

The sign after clearing away the vines. Photo by Tim Treuer.

"It's a big honking sign," Choi emphasizes.

19 years of waiting with crossed fingers had buried it, thanks to two scientists, a flash of inspiration, and the rind of an unassuming fruit.

The post was updated 8/25/2017.

Photo courtesy of Girls at Work

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This article originally appeared on 02.25.21


Middle school has to be the most insecure time in a person's life. Kids in their early teens are incredibly cruel and will make fun of each other for not having the right shoes, listening to the right music, or having the right hairstyle.

As if the social pressure wasn't enough, a child that age has to deal with the intensely awkward psychological and biological changes of puberty at the same time.

Jason Smith, the principal of Stonybrook Intermediate and Middle School in Warren Township, Indiana, had a young student sent to his office recently, and his ability to understand his feelings made all the difference.

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All images provided by Adewole Adamson

It begins with more inclusive conversations at a patient level

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Adewole Adamson, MD, of the University of Texas, Austin, aims to create more equity in health care by gathering data from more diverse populations by using artificial intelligence (AI), a type of machine learning. Dr. Adamson’s work is funded by the American Cancer Society (ACS), an organization committed to advancing health equity through research priorities, programs and services for groups who have been marginalized.

Melanoma became a particular focus for Dr. Adamson after meeting Avery Smith, who lost his wife—a Black woman—to the deadly disease.

melanoma,  melanoma for dark skin Avery Smith (left) and Adamson (sidenote)

This personal encounter, coupled with multiple conversations with Black dermatology patients, drove Dr. Adamson to a concerning discovery: as advanced as AI is at detecting possible skin cancers, it is heavily biased.

To understand this bias, it helps to first know how AI works in the early detection of skin cancer, which Dr. Adamson explains in his paper for the New England Journal of Medicine (paywall). The process uses computers that rely on sets of accumulated data to learn what healthy or unhealthy skin looks like and then create an algorithm to predict diagnoses based on those data sets.

This process, known as supervised learning, could lead to huge benefits in preventive care.

After all, early detection is key to better outcomes. The problem is that the data sets don’t include enough information about darker skin tones. As Adamson put it, “everything is viewed through a ‘white lens.’”

“If you don’t teach the algorithm with a diverse set of images, then that algorithm won’t work out in the public that is diverse,” writes Adamson in a study he co-wrote with Smith (according to a story in The Atlantic). “So there’s risk, then, for people with skin of color to fall through the cracks.”

Tragically, Smith’s wife was diagnosed with melanoma too late and paid the ultimate price for it. And she was not an anomaly—though the disease is more common for White patients, Black cancer patients are far more likely to be diagnosed at later stages, causing a notable disparity in survival rates between non-Hispanics whites (90%) and non-Hispanic blacks (66%).

As a computer scientist, Smith suspected this racial bias and reached out to Adamson, hoping a Black dermatologist would have more diverse data sets. Though Adamson didn’t have what Smith was initially looking for, this realization ignited a personal mission to investigate and reduce disparities.

Now, Adamson uses the knowledge gained through his years of research to help advance the fight for health equity. To him, that means not only gaining a wider array of data sets, but also having more conversations with patients to understand how socioeconomic status impacts the level and efficiency of care.

“At the end of the day, what matters most is how we help patients at the patient level,” Adamson told Upworthy. “And how can you do that without knowing exactly what barriers they face?”

american cancer society, skin cacner treatment"What matters most is how we help patients at the patient level."https://www.kellydavidsonstudio.com/

The American Cancer Society believes everyone deserves a fair and just opportunity to prevent, find, treat, and survive cancer—regardless of how much money they make, the color of their skin, their sexual orientation, gender identity, their disability status, or where they live. Inclusive tools and resources on the Health Equity section of their website can be found here. For more information about skin cancer, visit cancer.org/skincancer.

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Pop Culture

'90s kids share movies that will 'take you back to a better time'

It was a magical time when animals played sports and yet somehow things were just simpler.

YouTube/Upworthy photo illustration

Honey, I shrunk the kid named Matilda while jamming in space!

Everyone knows that '90s movies just hit different. From sports movies to rom-coms to even horror, there was an undeniable innocence, without being overly simplistic or juvenile. They didn’t have nearly the amount of money going into production as they do today, but somehow managed to transport us to magical places.

Movies of the '90s are so iconic that there have been several attempts to reboot beloved titles. Which, let’s face it, tends to be a fool's errand at a cash grab. These movies are so timeless that simply viewing the original is more than fine.

Not sure which movie to start with? You’re in luck—a Reddit user by the name of YouBrokeMyTV asked ’90s kids to share movies that took them “back to a better time,” and because the internet can be a wonderful place, tons of people responded with some beloved classics.

These answers certainly don’t make a definitive list (there are just so, so many gems) but they're a fun glimpse into what made '90s cinema so special. A nostalgic romp through memory lane, if you will.

Enjoy these 14 titles that just might leave you jonesing for a rewatch:

1. "Honey, I Shrunk the Kids"

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A perfect example of how '90s movies were silly, but smart at the same time. And oh so wholesome.

2. "The Sandlot"

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It taught us nothing about baseball, but everything about friendship, rooting for the underdog and (most important) how to make s’mores.

3. "Drop Dead Fred"

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Critics might have run this cult classic through the mud during its inception, but audiences fell in love with the bizarre charm of this story about a mischievous little girl and her anarchist imaginary friend. So take that, snotfaces!

4. "The Goonies"

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Everyone just wanted to set off an epic quest with their friends for pirate treasure after seeing this movie.

5. Tim Burton's "Batman"

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Before the superhero genre was the behemoth it is today, a quirky director and the dude who was best known for playing the creepy demon in "Beetlejuice" breathed new life into comic-book movies. Marvel might be the leader on creating stories with adult themes that are digestible for kids nowadays, but this DC film was the first of its kind. Plus, that soundtrack … forget about it.

6. "Hook"

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Pretty much any '90s film starring Robin Williams was an absolute gem, but this one in particular is timeless. His gift of balancing childlike humor with emotional gravitas lent itself so well to playing the now grown and cynical Peter Pan, who must learn to reclaim his joy (relatable, millennials?). It was a bang-a-rang-er, no question.

7. "Space Jam"

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It had Looney Tunes, it had aliens and it had Michael Jordan. That’s a winning combination.

8. "Matilda"

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I don’t think I’m out of line when I say that this movie helped a lot of kids make their way through difficult childhoods.

9. "The Parent Trap"

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Even '90s reboots were awesome. And how fun it is to see that Lisa Ann Walker—the actress who played Chessy the housekeeper—is not only yet again gracing the screens in NBC’s “Abbott Elementary,” but is also being revered as a style icon on TikTok for her ultra casual looks in the film. We all knew she was onto something with long button downs and shorts.

10. "The Land Before Time"

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No cartoon, not even “The Lion King,” was a better depiction of childhood grief. And yet, despite encapsulating tragedy, director Don Bluth still left viewers hopeful. The subsequent 14 (yes 14) sequels definitely pale in comparison to the original, but "The Land Before Time" continues to stand the test of time nonetheless.

11. "Richie Rich"

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The scene where they play tag on four-wheelers is simply iconic.

12. "Dunston Checks In"

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Man, the '90s were the golden age of animal-centered films. And not just monkeys either—we got sports playing golden retrievers and not one, but two movies starring talking pigs. What a time to be alive. These films were made before CGI had reached the levels it’s at today, and the authentic interactions between humans and creatures reached right through the screen.

13. "George of the Jungle"
george of the jungle, brendan faser

Watch out for the tree!!!

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Have I seen this movie at least 20 times? Probably. It doesn’t get any better than this in terms of silly action films with bird puppets. It’s crazy to think that this role would eventually lead Brendan Fraser to "The Mummy" franchise, turning him into a household name. Though his career has had some tragic ups and downs, we are all grateful for the glorious comeback he’s been having.

14. Anything involving Mary-Kate and Ashley Olsen
mary kate and ashley

Yes, they were professional detectives.

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Whether vacationing in London, Paris or Rome, whether playing magical witches or making a huge billboard so their father could find love … Mary-Kate and Ashley Olsen offered zany, whimsical entertainment while wearing fun outfits. Sometimes, that’s all you need.