For whales that dive deeper into the oceans for food, they face a growing threat: plastic pollution. That’s because the sounds that plastics make can be very similar to the sounds that prey make, leading to confusion for whales that rely on echolocation to source food.
According to a new study, published in the journal Marine Pollution Bulletin, visual confusion between pollution and prey is not the only way that whales are ingesting plastics.
“These acoustic signatures are similar, and this might be a reason that these animals are driven to consume plastic instead of, or in addition to, their prey,” Greg Merrill, lead author of the study and a graduate student at Duke University, said in a statement.
Some whales, such as sperm whales, pygmy sperm whales and goose-beaked whales, use echolocation to detect food sources deeper into the ocean. They dive deep into the water, then send clicks, creaks and buzzes, the sounds of which will bounce off from objects up to a few hundred meters away and reverberate back to the whales. Whales use fatty sensory mechanisms in their jaw to feel the reverberations, which are then sent to their ears and brains to detect the prey — or, as researchers have determined, plastics — nearby.
More and more research is uncovering plastic waste in the stomachs of deep-diving whales, so the researchers set out to find out why whales were mistaking plastic for food if they couldn’t see the plastics, which are often visually mistaken for food by marine life.
Samples of plastic beach trash collected in Beaufort and Atlantic Beach, North Carolina and then subjected to underwater acoustic testing. Greg Merrill, Duke Marine Lab
The researchers collected trash like plastic bags, plastic bottles bottles and balloons from a marine environment, as well as pieces of dead squids that had been collected from the stomach of a dead sperm whale, then tested the samples in a sonar transponder. The transponder and samples were placed underwater to mimic the whales’ feeding environments, and the researchers tested the acoustics at different frequencies, since different whales may use varying frequencies when hunting.
According to the study authors, all of the plastic waste tested had similar, if not stronger, acoustic target strengths when compared with the samples of prey, meaning it is likely that deep-diving whales are mistaking plastics for food by confusing the acoustic signals.
Scientists have estimated that about 11 million metric tons per year of plastic pollution ends up in the world’s oceans, reported Ocean Conservancy, which was not involved in the study. As such, the study authors highlighted a need for solutions to reduce the amount of plastic that could harm marine life.
While the authors noted that changing the acoustic properties of plastics could potentially make them more “whale-safe,” such plastics could still threaten whales if they can’t detect these materials in fishing nets and other sources of entanglement.
“Ultimately, work-arounds are insufficient solutions compared to the drastic reduction in production of unnecessary plastic,” the authors wrote in the study. “While plastic does serve many important purposes, such as in medical applications or durable long-lasting products, much of it, such as single-use packaging — like the shopping bags and films found in stranded whale stomachs — is gratuitous and pernicious.”
The post Plastic Pollution Sounds Like Food to Whales Using Echolocation appeared first on EcoWatch.
https://www.ecowatch.com/whales-echolocation-plastic-pollution-sounds-food.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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