upworthy

mountains

Sunrise on Mount Everest

If you asked people what the tallest mountain on Earth is, most would respond with Mount Everest, which is on the border of Nepal and Tibet. Everest is the highest peak in the Himalayan mountain range, rising 8,849 meters (29,032 feet) above sea level.

Everest is also commonly seen as one of the high points of human conquest. Scaling the mountain and reaching its peak was once known as one of the most significant challenges a human could undertake.

However, according to Joe Hanson, PhD, host of PBS’s “Be Smart,” Everest may not be the tallest mountain on Earth. In a video called “Why No One Can Agree on What's REALLY the Tallest Mountain,” he shows that height is in the eyes of the beholder when it comes to mountains.


Hanson is a science writer, biologist, and educator whose work has been published in WIRED, Nautilus, Scientific American, Texas Monthly, and other publications.

“Everest checks in at 8,848.86 meters tall today. But we still don't really know if that's right. Because on a planet that isn't perfectly round wrapped in a crust that keeps moving, measuring a mountain turns out to be way harder than you think,” Hanson opens the video.

- YouTubeyoutu.be

Hanson says that the title of tallest mountain on Earth has changed more than a few times over the last 300 years. In the 18th century, Mount Chimborazo in Ecuador was considered the tallest, but in 1908, that honor switched to Dhaulagiri in Nepal. Thirty-nine years later, that honor was taken by Kangchenjunga on the border of Nepal and India, until Everest usurped it just five years later.

There are two major problems with definitively ranking the tallest mountains on Earth. First, there is no universally accepted rule on what a mountain is or how one is defined. Second, mountains aren't the massive unchanging things that they appear to be.

What is the tallest mountain on Earth?

If you count the submerged part beneath the water, Hawaii's Mauna Kea is 20% taller than Everest. If you just measure base-to-summit, then Denali in Alaska is the tallest. "Everest only takes the title because most of the time, we measure mountains from sea level," Hanson says.

Everest is considered the tallest mountain because we measure from sea level, but that’s not the most reliable place to start. Due to Earth's gravity and shape, sea level varies across the globe, creating different elevations across the various oceans and seas. Scientists average these variations to create a “mean” sea level, the baseline for measuring mountain heights.



“But these days, the commonly accepted view is to measure a mountain's height above mean sea level. So Everest gets the title of tallest, despite other mountains having pretty strong claims to the throne,” Hanson says. “So, to summit all up, it's pretty easy to figure out where a mountain ends, but not everyone agrees on where a mountain starts. So when it comes to figuring out what's really the tallest mountain, maybe first we should get to the bottom of that.”

The funny thing is that even if Everest is the tallest mountain on Earth, it may not be that way forever; according to Hanson, Nanga Parbat in Pakistan is growing faster than Everest and could eclipse its famous neighbor in the next couple hundred thousand years. So, enjoy your time in the spotlight, Everest. In a few hundred thousand years, you may be downgraded to number two.

It's a fact: Every year, we're spending more and more time looking at our phones.

Estimates indicate that on average Americans spend anywhere from three to five hours on their smartphones every day. That's an astoundingly high number — and the perfect excuse for a little perspective.

There's an extraordinary world buzzing all around us, and we miss so much of it staring endlessly at our tiny screens. You say your busy life won't let you escape to some of our planet's most remarkable places? Not to worry. You can bring those places back home to your phone.


Here are 31 marvelous world wonders we think would look perfect as your lock screen.

1. Iceland's northern lights are a stunning sight, in person or online.

Who knew geomagnetic storms could be so stunning? Image by iStock.

2. Find peace in this photo of a storm-swept lighthouse.

Image by iStock.

3. The arch at Palau's Rock Islands is beautiful above water and below.

Image by iStock.

4. Milford Sound on New Zealand's South Island is an Instagram filter-lover's dream.

Image by iStock.

5. A huge statue of the Hindu god Lord Murugan greets visitors to the Batu Caves in Malaysia.

Image by iStock.

6. Watch sunlight break over the peaks in the Himalayas.

Image by iStock.

7. About 45 million gallons of water rush over North America's largest waterfall, Niagara Falls, every minute.

Image by iStock.

8. This ginormous "Christ the Redeemer" statue watches over Rio de Janeiro's six million residents.

Image by iStock.

9. Live vicariously through these thrill-seeking spelunkers.

Image by iStock.

10. Looking at Haystack Rock near Cannon Beach, Oregon, might inspire you to head to your nearest beach.

Image by iStock

11. Soothe your muggle heart with this image of the IRL Hogwarts Express chugging across Scotland.

Image by iStock

12. These towering redwoods are some of the largest trees in North America.

Image by iStock

13. This tiny sandbar in the Pacific didn't think it'd end up a helicopter perch. But sometimes life — and conspicuous wealth — finds a way.

Image by iStock

14. Mossy green wonderlands — like this one near Oregon's Punch Bowl Falls — are unique to the temperate rainforests of the Pacific Northwest.

Image by iStock

15. Follow the stepping stones of Northern Ireland's Giant's Causeway straight into the North Atlantic.

Image by iStock

16. Decades of pounding surf carved a perfect alcove in the rocks at Lands End in Cabo San Lucas, Mexico.

Image by iStock

17. Mother Nature really shows off her sculpting skills in Utah's Paria Canyon.

Image by iStock

18. The Matterhorn is more than a ride I got stuck on for 45 minutes at Disneyland. It's a breath-catchingly stunning peak in the Alps.

Image by iStock

19. The Grand Canyon is so incredible, it really deserves a better adjective. "Astoundageous" maybe?

Image by iStock

20. The narrow, rocky green peaks of the Wulingyuan scenic area in China's Hunan province are both a Unesco World Heritage site, and the inspiration for Pandora, the world in "Avatar."

Image by iStock

21. Creeping tree roots reclaiming this temple in Angkor, Cambodia, are a reminder that, eventually, no matter how hard we work, nature always wins.

Image by iStock

22. Find your most flattering light in Arizona's Antelope Canyon.

Image by iStock

23. The Colorado River's Horseshoe Bend in Arizona will keep you coming around for more.

Image by iStock

24. This Norwegian waterfall is stunning and proud, naturally.

Image by iStock

25. This icy blue Icelandic cave is guaranteed free of abominable snowmen.

Image by iStock

26. Gold dunes and golden skies are everywhere in Morocco's eastern desert.

Image by iStock

27. This solitary tree in New Zealand's Lake Wanaka isn't content to live on land.

Image by iStock

28. This secluded beach at Knysna Heads in South Africa's Western Cape Province is #goals.

Image by iStock

29. Baobab trees beat the thirst by storing water away in their thick trunks. Just like your phone's text message archive.

Image by iStock

30. Nobody knows for sure where the Sphinx's nose is, but she's a towering beauty nonetheless.

Image by iStock

31. Find peace — however you define it — in the stark cold beauty of the Himalayan mountains.

Image by iStock

Did we miss your favorite spot in our wallpaper roundup? Let us know!

Winter in the coastal rocky mountains of British Columbia is not perfect filmmaking weather. So when aerial filmmaker Bradley Friesen finds a window to make videos, his collaborators have to be ready at a moment's notice.

For figure skater Katrina Lazzarotto, that meant saying yes to flying up to a tiny lake atop a mile-tall mountain — and buying a new pair of skates on the way to the airport.


Lazzarotto and her new blades on the way to the airport. Photo by Bradley Friesen, used with permission.

The expense was worth it. In a few short hours, she'd be skating on ice that human feet — let alone feet in skates — had never touched before.

Lazzarotto laces up for the skate of a lifetime. Photo via Bradley Friesen/YouTube.

The lake on which Lazzarotto is about to skate is extremely remote.

It's deep within the coastal mountain range, about 50 miles northeast of Vancouver. There's no way to get near it, no roads or access. You'd never know it existed unless you were a mountain goat or you'd flown over it in a small helicopter.

This glacial lake is one of seven nearby nicknamed "The Mystics." They range in color from deep blue to bright green during the summer. Photo via Bradley Friesen/YouTube.

Finding a frozen lake this high in the mountains without snow cover is extremely rare. "I'd say it's about a once every ten years phenomenon," says Friesen as we chat by phone. "But because of climate change, it's happened the last three years in a row."

And when it does happen, it's time to seize the moment.

To quote Internet prophet David after Dentist: "Is this real life??" Photo via Bradley Friesen/YouTube.

Before this day, Lazzarotto hadn't skated in four years. But it all came back quickly.

Lazzaratto called this skating "on heaven." She's not wrong! GIF via Bradley Friesen/YouTube.

When you're a mile high in the mountains, perspective comes easy.

Filmmaker Bradley Friesen has been flying helicopters for the last 25 years, but only in the last two has he actively pursued a living as an aerial filmmaker. He's passionate about documenting western Canada's wild outdoors — particularly in winter, which on the coast gets shorter ever year.

Lazzarotto shoots the duck for the camera. Photo via Bradley Friesen/YouTube.

"I'd be stupid not to be an environmentalist," Friesen says. "Climate change is having an effect on all of us. Our glaciers in British Columbia are receding so fast. They used to move back 10 feet in a season, now it's like, 50 feet or more every year."

Photo via Bradley Friesen/YouTube.

"I think it's important I'm capturing it, so we can show people in the future what winter used to look like."

Photo by Bradley Friesen, used with permission.

Friesen has two other winter videos he dreams of making.

He wants to film a pairs skating team in the mountains — holler at him on Twitter or Instagram if you are in one and live within a day of Vancouver — and he's desperate to build a hockey rink and play a game on a frozen mountain lake.

"I've tried to build a rink 15 times and failed every single time," he says, laughing. "I can tell you precisely how not to build a hockey rink at 5,000 feet."

Here's hoping winter sticks around B.C. long enough for him to make his dream come true.

GIF via Bradley Friesen/YouTube.

Check out Friesen's video of Katrina Lazzarotto skating here: