Your Next Favorite Handbag Could be Made of Mushroom Leather

Bolt Threads
Bolt Threads

From the makers of imitation spider silk comes a new eco-friendly material: mushroom leather. Invented by Bolt Threads, the material is called Mylo—short for mycelium, the fungi filaments that are used to create the leather.

Not only does it look like real leather, but it feels like it too, according to the California-based company. For the past nine years, Bolt Threads has been using biotechnology to take materials found in nature and transform them into never-before-seen textiles. As the company prefers to put it: “Animal leather is so 1st century.”

Bolt Threads partnered with biomaterials company Ecovative to license the technology. Mycelium cells are grown in a lab, and different variables like temperature, humidity, and CO2 levels are controlled to create a large fibrous network that looks a lot like leather, Fast Company reports.

“We cut it into slices, and it goes through a process not dissimilar to how animal hides are tanned to become leather, except it’s more environmentally friendly,” Dan Widmaier, founder and CEO of Bolt Threads, explained.

By tweaking the growth process, they can change the strength, durability, and suppleness of the leather.

While mushroom leather might not sound like the most luxurious material, the company has found an unlikely ally in the fashion industry. English designer Stella McCartney, daughter of Paul McCartney, crafted a handbag out of Mylo that has been dubbed the Falabella Prototype One. It’s currently on display at the Victoria and Albert Museum in London, which is also showcasing bags that McCartney created for Paris Fashion Week using Microsilk, Bolt Threads’s imitation spider silk material. In an effort to reduce the consumption of real silk, which typically involves the killing of silkworms, McCartney even created a spider silk dress.

Mylo's introduction comes at a time when many haute couture labels are looking to market their products as sustainable. Gucci has been fur-free since last year and it also launched a line of sunglasses made from a biodegradable material. Across the industry, many other luxury labels have opted for alternate, eco-friendly materials. (Pineapple "leather" has been around for a couple of years now.)

Bolt Threads will also be releasing its own Mylo handbag, for which a limited-edition pre-sale will begin in June.

[h/t Fast Company]

This Outdoor Lantern Will Keep Mosquitoes Away—No Bug Spray Necessary

Thermacell, Amazon
Thermacell, Amazon

With summer comes outdoor activities, and with those activities come mosquito bites. If you're one of the unlucky people who seem to attract the insects, you may be tempted to lock yourself inside for the rest of the season. But you don't have to choose between comfort and having a cocktail on the porch, because this lamp from Thermacell ($25) keeps outdoor spaces mosquito-free without the mess of bug spray.

The device looks like an ordinary lantern you would display on a patio, but it works like bug repellent. When it's turned on, a fuel cartridge in the center provides the heat needed to activate a repellent mat on top of the lamp. Once activated, the repellent in the mat creates a 15-by-15-foot bubble of protection that repels any mosquitos nearby, making it a great option for camping trips, days by the pool, and backyard barbecues.

Mosquito repellent lantern.

Unlike some other mosquito repellents, this lantern is clean, safe, and scent-free. It also provides light like a real lamp, so you can keep pests away without ruining your backyard's ambience.

The Thermacell mosquito repellent lantern is now available on Amazon. If you've already suffered your first mosquito bites of the summer, here's some insight into why that itch can be so excruciating.

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Expeditions Gather Climate Change Clues on Mount Everest in Two New Documentaries

Team members climb up a slope during the expedition to find Sandy Irvine's remains on Mount Everest.
Team members climb up a slope during the expedition to find Sandy Irvine's remains on Mount Everest.
Matt Irving/National Geographic

Two one-hour documentaries premiering tonight reveal what Mount Everest is really like—and what scientists can learn from studying it.

Both docs are produced by and airing on National Geographic. In Lost on Everest, premiering at 9 p.m. EDT, climber Mark Synnott and Nat Geo photographer Renan Ozturk lead a team of seasoned mountaineers on a mission to discover what happened to Andrew “Sandy” Irvine, who vanished with fellow explorer George Mallory during the first Everest climb in June 1924. While Mallory’s body was located by a BBC-sponsored operation in 1999, Irvine’s exact fate has remained a mystery for nearly a century since his disappearance. As Synnott and his companions search for evidence, they encounter their own harrowing set of obstacles, from hurricane-force winds to medical emergencies.

Climbers on Mount Everest
Climbers ascend the Khumbu Icefall, a notoriously dangerous section of the summit route.
Mark Fisher/National Geographic Society

But Mount Everest isn’t only a challenge for adventure-seekers and intrepid investigators—it also holds thousands of years’ worth of information about how climate change has altered the environment, which can help scientists predict its future effects. In Expedition Everest, airing at 10 p.m. EDT, actor Tate Donovan narrates the journey of an international group of scientists and climbers with an ambitious set of data-collecting objectives.

One task is to use drones, laser scanners, and cameras to capture footage of every inch of the ascent, so researchers can create a 360-degree portrait of the mountain and track how glacial melt alters the landscape in the coming years. Since the Himalayas contain the water supply for roughly one-fourth of the world’s population, the increase in glacial melt—which has already doubled since 2000—could threaten the futures of billions of people living in the region.

Scientists drill ice cores on Mount Everest
Mariusz Potocki and members of the National Geographic and Rolex Perpetual Planet Everest Expedition team collect the highest-ever ice core at 8020 meters (26,312 feet) near the South Col of Everest.
Dirk Collins/National Geographic Society

Even more immediate is the risk of flash floods, which are difficult to predict without a constant feed of weather data from high altitudes. Another goal of the expedition is to install weather stations at five locations along the climbing route, which will monitor temperature, humidity, air pressure, wind speed, and other factors that help alert meteorologists to an impending flood.

Some researchers have joined the expedition to drill deep into the ice at an altitude above 8000 meters (26,000 feet)—Mount Everest's "death zone"—and collect ice cores. These long tubes of ice reveal how the atmosphere has changed over thousands of years. Others are collecting similar cores of sediment at the bottom of a lake, as well as examining how plant and animal life has adapted to the warming temperatures and rising water levels.

Overall, Expedition Everest illustrates how the Himalayas function as an early indicator of what climate change will do to other places.

As climate scientist Anton Seimon explains in the documentary, “We’re getting a window into what the rest of the world is starting to experience—and likely to experience in growing proportions.”

You can watch the double feature tonight, June 30, at 9 p.m. EDT on National Geographic.