Yes!
The 2 to 4 million species of fungi in the world offer us endless possibilities — from creating alternative building materials and textiles, to cleaning up environmental toxins, to providing new sources of plant-based proteins. Now, scientists are turning to mushrooms and mycoremediation to solve our plastic pollution crisis.
What Is Mycoremediation?
Mushrooms growing at a habitat restoration site in Hylebos Creek, Tacoma, Washington in 2010. Port of Tacoma / Flickr
Mycoremediation is a form of bioremediation: the introduction of microorganisms or other life forms to break down environmental pollutants in contaminated areas. Bioremediation is employed to clean up oil spills, industrial sites, brownfields and even Superfund sites, often introducing bacteria to degrade the pollutants and cycle nutrients back into the environment. Mycoremediation is different in that it uses fungi instead of bacteria. Mycelia — the thread-like root systems of fungi that grow underneath the mushroom — consume food externally, using their enzymes to break down molecules in pollutants and toxins. Basically, they digest the surface they’re growing on and convert it into nutrients.
It’s a remarkable method that’s been used to clean up industrial and agricultural waste — like cyanotoxins, herbicides and pesticides — and sometimes convert them into edible, high-protein mushrooms. Mushrooms have been used to clean up oil spills, contaminated soil and heavy metals in brownfields. Oyster mushrooms are capable of removing E. coli from contaminated waters, such as the highly contaminated Chicago River, as well as toxin-filled ash from wildfires that make their way into waterways.
And now, we’re beginning to see their potential to break down one of our generation’s most widespread pollutants: plastic.
Potential Uses
Landfills and Marine Plastic Patches
Plastic doesn’t decompose, but merely breaks down into smaller pieces over time. That means that the 8.3 billion tons of plastic that have been produced since the 1950s still exists in one form or another. Landfills, where 27 million tons of plastic have accumulated since 2018, are a particular concern. How, though, can mushrooms be used to break down plastic in these airless, sunless environments?
Pestalotiopsis microspora might be the answer. A 2011 study out of Yale University declares that this rare mushroom — found by students on a class research trip to Ecuador’s Amazon rainforest — can degrade a common type of polymer plastic called polyester polyurethane, along with several other fungi in the Pestalotiopsis genus. These fungi can use plastic as their main source of carbon, converting it into organic matter. Pestalotiopsis microspora can even do so in both liquid and soil suspensions in dark environments without oxygen, meaning it could be useful in landfills, waste treatment centers and even in ocean plastic gyres like the Great Pacific Garbage Patch. Working quickly, it decomposes parts of the plastic in just two weeks.
In 2017, scientist Sehroon Khan of the Kunming Institute of Botany collected Aspergillus tubingensis growing in a city garbage dump in Islamabad, Pakistan. He found that the fungus was able to break down polyurethane — a plastic used widely in producing large appliances, fake leather, sponges, and synthetic fibers — within weeks. The mushroom’s enzymes and mycelia work to break bonds between molecules and then break them apart.
Non-Recyclable Material
Not all plastics can be recycled, or it’s extremely difficult to do so. Polypropylene, for example, accounts for 28% of global plastic waste, but a meager 1% of it is recycled. It’s used to create household items like toys, industrial products like car parts, plastic packaging like takeout containers and cling film, and textiles, making it a widely used plastic for which there are few recycling solutions.
Research conducted by the University of Sydney’s School of Chemical and Biomolecular Engineering discovered that two types of fungi typically found in plants and soil — Aspergillus terreus and Engyodontium album — were able to break down this type of plastic after being pre-treated with heat, UV light or an acidic solution called Fenton’s reagent. After 30 days of incubation, the plastic had been reduced by 21%, and after 90 days, it had been reduced by 25 to 27%. Researchers believe that if they optimize the conditions of the process even more, they’ll see a reduction in degradation time.
Oyster mushrooms can also break down items containing non-recyclable plastic. One trial conducted by Fungi Solutions in Melbourne found that they are capable of breaking down most toxins and the microplastics in cigarette butts, which are one of the top items of plastic waste found in the ocean, within seven days. The group believes they can remove 1.2 million cigarette butts from landfills and dispose of them in this way.
In the Home
Even for the plastic waste in your own home, oyster mushrooms are coming to the rescue. Pleurotus ostreatus and Pleurotus pulmonarius — both types of oyster mushrooms — were found capable of degrading PET (Polyethylene Terephthalate) plastic over 30 to 60 days. PET is commonly used to make plastic water bottles, 600 billion of which are produced every year and only a small percentage of which actually get recycled.
The Fungi Mutarium might just be the solution. Created by Katharina Unger with Utrecht University in the Netherlands, the recycling system contains pods made of agar and plastics treated with UV. Oyster and split gill mushrooms fed on these pods for a few months. Scientists anticipate smaller scale versions of the Fungi Mutarium being used in homes, and larger systems at recycling or waste-treatment centers for community use. While some bioaccumulate too many toxins when degrading environmental pollutants, some mushrooms that feed on plastic in such systems are even edible — such as the Fungi Mutarium, which produces edible mycelia.
Takeaway
With our plastic pollution crisis only growing, we’ll need to find ways to both reduce our consumption as well as sustainably dispose of these huge amounts of waste. Mycoremediation is an opportunity to handle plastic waste through natural means, perhaps even on a worldwide scale.
The post Can Mushrooms Really Break Down Plastic? appeared first on EcoWatch.
https://www.ecowatch.com/mushrooms-plastic-breakdown-ecowatch.html
Thoreau wrote in Walden that “Time is but the stream I go a-fishing in,” which reminds us that life is short and nature fills it beautifully. What are you looking for that can’t be found during an afternoon in nature?
Earth911 inspirations. Post them, share your desire to help people think of the planet first, every day. Click the poster to get a larger image.
The post Earth911 Inspiration: Time Is but the Stream appeared first on Earth911.
https://earth911.com/inspire/earth911-inspiration-time-is-but-the-stream/
Green Living
Classic Sustainability In Your Ear: The Ocean River Institute’s Natural Lawn Challenge for Climate Action
Turn back the clock with this classic interview that will get you ready for Spring yard care planning. A lawn may be beautiful but it can take a heavy toll on the environment, accounting for between 30% and 60% of residential water use in the United States. Rob Moir, Ph.D., is president and executive director of the Ocean River Institute in Cambridge, Massachusetts. ORI works with residential lawn owners to heal damaged ecosystems by restoring coastal areas to lessen the destructive impacts of climate change. The benefits of a natural lawn reach far beyond reduced local water pollution, eliminating chemicals that can contribute to cancers, diabetes, Alzheimer’s disease, and other cellular diseases. Natural lawns are also better for local pollinators and store much more carbon than heavily fertilized lawns. If you considered removing your lawn to play a part in the battle against climate change, this interview may change your mind — a healthy lawn is a powerful carbon sink.
The Ocean River Institute is recruiting Massachusetts communities, town by town, to take a pledge to follow natural lawn practices in the Healthy Soils for Climate Restoration Challenge. You don’t need to live in Massachusetts to participate and learn about the alternatives to the traditional, chemical-intensive lawn practices that use Roundup, a source of glyphosates that kills soil-dwelling fungi and local pollinators, and fast-acting nitrogen fertilizers. You can learn more about the Ocean River Institute at www.oceanriver.org.
Rob has contributed many articles about climate change and the history of environmental change since this interview, including:
- Finding a Northwest Passage to the Sea
- Turning the Tide—How Land and Water Shape Our Climate Future
- Learning from Captain Scoresby’s Ten-gallon Fir-Cask
- Earth Savvy?
- Let the Ground Keep Falling Rainwater
- The Sultans of Swag Versus Looking at Clouds from Both Sides Now
- Subscribe to Sustainability in Your Ear on iTunes and Apple Podcasts.
- Follow Sustainability in Your Ear on Spreaker, iHeartRadio, or YouTube
Editor’s Note: This episode originally aired on May 30, 2022.
The post Classic Sustainability In Your Ear: The Ocean River Institute’s Natural Lawn Challenge for Climate Action appeared first on Earth911.
https://earth911.com/podcast/earth911-podcast-the-ocean-river-institutes-natural-lawn-challenge-for-climate-action/
Choosing your perfect gown can be one of the most exciting decisions for your special day, but for the eco fashionista, it can be a challenge to find a dress that fits your values and style — but these brands have exceptional sustainable wedding dresses you’ll swoon over!
Using earth-minded materials like hemp, cruelty-free peace silk, deadstock recycled fabrics and vintage lace, and producing consciously, either in small batches or handcrafting each individual piece made-to-order, the brands below meet high standards for transparency, ecological sustainability, and fair labor.
[For more sustainable wedding dresses, check out this guide to secondhand wedding dress sites!]
Note that the guide contains affiliate links. As always, we only feature brands that meet strict criteria for sustainability we love, that we think you’ll love too!
1. Christy Dawn
Dreamy dress brand Christy Dawn does not disappoint with their romantic bridal collection! Each piece is more swoon-worthy than the next.
Their three sustainable bridal gowns are made from regenerative silk charmeuse —sourced through BOMBYX, an innovative silk producer using best practices — and colored in a beautiful pearl silk with non-toxic dyes. Each dress is ethically cut and sewn by makers in Los Angeles earning living wages, as with the rest of Christy Dawn’s collections.
The Britta Dress and Fitzgerald Dress are 1920s inspired while the Athena Dress is a more modern (but equally romantic) option. All of these dresses are made-to-order with an estimated timeline of 4 weeks.
Conscious Qualities: Regenerative silk and organic non-toxic dyes, ethically made-to-order in Los Angeles
Price Range: $2,500 – $3,000
Size Range: XS – XL
2. Pure Magnolia
Blending the traditional with the modern, Pure Magnolia designs classic-inspired sustainable wedding dresses with contemporary touches. And each dress is made in their Canadian studio by seamstresses earning fair wages from eco-fabrics, such as organic cotton and hemp silk.
The brand sources recycled fabrics whenever possible as well, and recycles their scrap fabric through FABCYCLE.
Conscious Qualities: Eco-friendly fabrics, locally and fairly made, recycles scrap fabrics
Price Range: $845 – $3,300 CAD
Size Range: 0 – 28
3. Lost in Paris
Lost in Paris crafts each of their creatively designed bohemian-inspired gowns ethically in their Sydney, Australia studio. Unconventional yet undeniably striking, Lost in Paris’ dresses are made from vintage lace and cotton.
Investing in a dress from Lost in Paris is seamless — the brand offers at-home sample try-ons, offers train and sleeve adjustments on several styles, ships their dresses worldwide for free, and even accepts returns. Oh, and, if one of their ready-made sizes doesn’t work for you, you can get a dress designed to your measurements.
Conscious Qualities: Made-to-order model, uses vintage lace, locally made
Price Range: $950 – $3900 AUD
Size Range: XXS – XXL + custom sizing options
For More Slow Fashion Content:
4. Wear Your Love
Wear Your Love creates feminine, effortless dresses in their Northern California studio that are — in contrast to the majority of wedding dresses on the market — actually comfortable! The brand’s free-spirited designs are made with soft, earth-minded fabrics like organic cotton and each dress is made to order for each bride to their exact measurements.
There are also customizations available for each eco-friendly wedding dress such as train or no train, skirt or sleeve linings, back coverage, skirt style, and more.
Conscious Qualities: Eco-friendly fabrics, made-to-order model, locally and transparently made
Price Range: $680 – $1,700
Size Range: N/A; dresses are made to your measurements
5. Larimeloom
Based in Reggio Emilia, Italy, Larimeloom crafts exceptional custom-made dresses by hand in their atelier. The brand creates comfortable minimalist dresses from durable natural fabrics and colors them with natural or non-toxic dyes.
Larimeloom has also implemented zero waste design techniques, cutting their patterns strategically in order to minimize fabric waste.
Conscious Qualities: Made-to-order model, zero-waste designs, natural fabrics and dyes
Price Range: 650€ – 2,650€
Size Range: XS – XL
6. Sister Organics
Sourcing quality earth-friendly natural fabrics like organic hemp and cotton, Sister Organics creates classic, eco-friendly wedding dresses for UK-based brides.
Each dress is made to order in England, so you can select a pre-defined size, customize the length of a size, or get an entirely different dress made for your measurements.
Conscious Qualities: Eco-friendly fabrics, made-to-order model
Price Range: £125 – £390
Size Range: XXS – XXL + custom sizing
7. Indiebride London
Indiebride’s vintage-inspired sustainable wedding dresses are delicate and romantic yet free-spirited, offering a unique collection for the bride that wants to skip the conventional wedding gown and choose a piece that fits their individual style.
The brand’s conscious wedding dresses are handmade in London using majority natural fibers and can be altered or customized to your specifications.
Conscious Qualities: Made-to-order model, uses many natural fabrics, locally made
Price Range: £1,200 – £1,700
Size Range: 8 – 16 (UK sizes)
More Resources For Your Eco Wedding:
10 Secondhand Wedding Dress Sites for the Eco Bride
7 Ethical Lab-Grown Diamond Engagement and Wedding Rings
17 Brands with Conscious Dresses (great options for bridesmaid dresses in here!)
The post 7 Best Sustainable Wedding Dresses for Your Special Day appeared first on Conscious Life & Style.
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