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A new study has found per- and polyfluoroalkyl substances (PFAS) in Miami’s rainwater.

It is the most recent evidence that “forever chemicals” get caught up in the water cycle and circulate over great distances.

“PFAS are practically everywhere,” said Natalia Soares Quinete, author of the study and an assistant professor of chemistry at Florida International University (FIU), in a press release from FIU. “Now we’re able to show the role air masses play in potentially bringing these pollutants to other places where they can impact surface water and groundwater.”

PFAS, widely found in consumer products — from nonstick cookware to cosmetics, clothing, food packaging and firefighting foams — have been associated with health issues in humans and wildlife.

Researchers at FIU spent over a year collecting and analyzing 42 rainwater samples from three sites in Miami-Dade County. They detected 21 PFAS, including PFOS and PFOA — which has since been phased out due to cancer concerns — along with newer forever chemical compounds used in manufacturing.

Several of the PFAS profiles were able to be matched with local sources, while others were not. The researchers said this suggested the planet’s atmosphere is able to transport the toxic chemicals all over, contributing to global pollution.

PFAS are called “forever chemicals” because of their inability to break down easily in the environment, where they accumulate over time. Humans can inhale or ingest them, and exposure to them has been associated with kidney and liver damage, cancer, fertility issues and other serious health problems.

According to the U.S. Environmental Protection Agency (EPA), exposure to low levels of PFAS can be hazardous. The EPA has set limits on some PFAS chemicals in drinking water supplies.

It remains unclear just how PFAS make their way through the environment.

Quinete’s research team is one of the first to extensively survey PFAS prevalence across South Florida.

The team found PFAS concentrations in surface water, including Biscayne Bay, and drinking water. They also detected the toxins in animals who live there, including oysters, lobsters and fish.

Next, they looked to rainwater.

PFAS are able to infiltrate the atmosphere through evaporation or becoming absorbed into microscopic dust and particles. Shifting air currents and wind then buffet them along. When rain forms, its drops fall to the ground, bringing some of the pollutants with them. This cycle happens again and again.

In 74 percent of samples taken from October of 2021 to November of 2022, the most abundant and frequently found PFAS in Miami’s rainwater were PFCAs. PFCAs are commonly used in stain-resistant and nonstick products, firefighting foams and food packaging. High levels of the toxic compounds had previously been detected in nearby surface waters, which indicated that they had come from local sources.

The researchers noticed something else: A shift happened at particular times of year. During the dry season — from October through May — PFAS concentrations suddenly soared, including some normally found in other states such as North Carolina, where facilities that produced goods made with the chemicals were located. This coincided with air masses from the Northeast moving into Miami.

“The season variations were interesting to us,” said Maria Guerra de Navarro, a graduate student who co-led the study, in the press release. “We know there are northern states with manufacturing that matches back to the PFAS we saw, so it’s likely that’s where they are coming from.”

The research team suspected that drier northern currents created ideal conditions for more PFAS-laden particles and dust to be spread. Rain then “washing out” the pollutants from the surrounding air could be responsible for the higher concentrations.

A Florida International University research buoy floats in Biscayne Bay in Miami, Florida on Aug. 3, 2023. Joe Raedle / Getty Images

Guerra de Navarro is currently looking at this “dry deposition” and measuring the amount of PFAS that can be put into particles of less than 10 microns in size. A micron is seven times smaller than a strand of human hair.

The team hopes the study’s data will be able to help guide future regulations and solutions for reducing and controlling dangerous PFAS.

“This is all about creating awareness that this is all one world,” Guerra de Navarro said. “[What] happens in one area can impact here, there, everywhere. We have to be thinking about how to prevent these chemicals from going all over the world.”

The study, “It’s raining PFAS in South Florida: Occurrence of per- and polyfluoroalkyl substances (PFAS) in wet atmospheric deposition from Miami-Dade, South Florida,” was published in the journal Atmospheric Pollution Research.

The post It’s Raining PFAS ‘Forever Chemicals’ in Miami, Study Finds appeared first on EcoWatch.

https://www.ecowatch.com/pfas-rainwater-miami-forever-chemicals.html

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Earth911 Inspiration: Be a Mountain or Lean on One

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This week’s quote is a Somali proverb: “Be a mountain or lean on one.”

Earth911 inspirations. Post them, share your desire to help people think of the planet first, every day. Click to get a larger image.

"Be a mountain or lean on one." --Somali proverb

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8 Best Ethical & Sustainable Flats That Are Effortlessly Chic

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Ballet flats have long been a staple in my wardrobe, but in the past few years have experienced a significant resurgence — and for good reason. The right pair can be practical, versatile, and oh so chic through days at work, with family, or out for the evening. But finding that “just right” set that’s well-crafted and sustainably made can be a whole other story. That’s why this sustainable flats guide exists.

Comfort, style, sustainability, and longevity are a lot to ask in a shoe, but I don’t believe it’s too much. It just takes some extra digging. And thankfully, I’ve done that digging for you. Because I get it! I want a flat that looks beautiful. I want a flat that’s made responsibly in line with my values. I want a shoe I can actually wear for my life. And I want that shoe to be worth the investment — it has to last. That’s why I vetted through dozens of brands to create this curated list of flats.

What Makes a Flat More Sustainable?

Material Sourcing

Footwear is a tricky category when it comes to sustainable fashion because we ask a lot of our shoes. We wear them in rain or sunshine, paved paths and cobblestone, day in and day out for years. And through it all, they have to remain beautiful. Because when they’re unwearable, there’s not much left to do with them: there is no viable footwear recycling today. Anywhere that calls it “shoe recycling” is really repurposing that footwear. But once it can no longer be worn, it’s simply trash.

In other words, our shoes need to be incredibly durable, even though the most durable materials don’t always come with the lightest footprint. In footwear, when we talk about durability, we usually rely on leather or high-performance synthetic materials. Leather can hold up with many years of wear, getting more beautiful with wear, and is easy to repair when needed. Synthetic materials are also durable, particularly for withstanding the elements like snow and rain.

But sourcing these materials conventionally is highly polluting — so how can we source these materials better?

For synthetics, we have recycled options. Today, that’s largely recycling from plastic bottles, which isn’t without it’s controversies, but there is much innovation happening in the industry around true textile-to-textile recycling.

For leather, I look for:

  • Vegetable-tanned (rather than chromium tanned)
  • Locally-sourced leather (more traceability), and/or
  • Leather Working Group certified leather, which covers responsible management of water, energy, and waste; safe chemical management, traceability of the raw material, and occupational safety for workers.

Notably, there is no certification for animal welfare, so these are imperfect systems. But the alternative is footwear made from synthetic plastic materials or vegan leather alternatives that don’t yet meet the same durability standards as leather. Sustainability within today’s constraints requires trade-offs.

That said, there is always secondhand leather — by buying shoes secondhand you can access the quality of leather without adding further demand for the material.

Responsible Manufacturing

When considering responsible production practices, I look for first and foremost: transparency. Seeing what the brand shares about their material sourcing, their process, and who made their shoes where. And then I look at the details of that process: were the shoes made locally or within a geographic region? How are the workers paid and treated — and under which conditions do they work?

And, sometimes a brand employs an out-of-the-box approach to manufacturing entirely. There are a few slow fashion footwear brands challenging the traditional fashion system of ordering in mass quantities before demand is assessed —which inevitably leads to overproduction. These brands use an “on demand” model instead, producing their shoes only after they’ve been ordered. This reduces the risk of overproduction (i.e. producing more than what gets sold) while also encouraging more thoughtful consumption. You can’t impulse buy a pair of Mary Janes that you have to wait 8 weeks for.

Wearable and Beautiful

The most perfectly environmentally sustainable flat in the world is useless if no one wants to wear it. And as I mentioned earlier, footwear cannot be recycled into new footwear at the end of its life, so we want our shoes to last a really long time. That means they need to be design forward and comfortable, too.

My Top Picks for More Sustainable and Ethical Flats

Keeping all of that in mind, these more sustainable flats brands meet this criteria, albeit to various extents. Some err more on comfort while some more on style. Some have admirable levels of transparency and social impact, while other brands have more of a focus on their ecological impact. I’ve included descriptions alongside each brand as well as a summary of conscious qualities so you can find a brand that meets your priorities best. And, of course, a price range so you know what makes sense for your budget as well.

Some that this guide includes affiliate links which means we may earn a commission if you shop through these links. As always, brands featured in shopping guides are brands that meet our strict sustainability criteria that we think you’ll love.

1. ALOHAS

Spanish brand ALOHAS flips the typical fashion production system on its head with its on-demand model.

Instead of overproducing thousands of shoes to later discount them, ALOHAS does the exact opposite. Its newest styles are available for pre-order at a discount of 30%, so the footwear brand can more accurately forecast demand. Then the shoes — like their flats — are primarily made by local artisans in Spain and Portugal. The brand regularly shows the behind the scenes of their production on their social media.

Conscious Qualities: On-Demand Production, Locally Made

Size Range: EU 35-42 (US 5-11)
Price Range: $195-$225

sustainable black ballet flats

2. Rothy’s

If you’re looking for flats for all-day wear at work or running errands, Rothy’s is my recommendation with their cushy insoles. The brand makes their more sustainable flats from recycled plastic bottles, as well as materials like hemp and merino wool, but they still look sleek enough for the office.

While I might not wear Rothy’s flats to a fashion event (I prefer smooth leather for more elevated occasions), they are more than stylish enough to wear to most of my real-life scenarios. My favorite part about Rothy’s, though, is that they are machine washable.

Materials: Recycled & Natural Materials, Owns One Factory (undisclosed percentage of production)

Size Range: US 5-13
Price Range: $99-$165

mustard yellow recycled flats with pointy toes

3. Vivaia

Vivaia has the most adorable sustainable Mary Janes made from recycled plastic bottles. The adjustable straps and arch support make Vivaia’s Mary Janes suitable for all-day comfort, even if your feet are typically prone to slipping out of flats.

This vegan footwear brand also makes square-toe and pointed-toe flats for a more elevated look. And of the several recycled plastic bottle footwear brands on the market today, Vivaia tends to have the most elevated designs in my opinion.

Conscious Qualities: Vegan, Recycled Materials

Size Range: US 5-11
Price: $97 – $116

4. The RealReal

The RealReal is an authenticated luxury resale platform with contemporary, designer, and high-end luxury brands. Depending on your priorities you can find shoes in anywhere from pristine condition (but higher priced)) to “fair” or even “as is” for the largest discount from full price.

You don’t always have as many options aesthetically when shopping more sustainably, so I like to go to The RealReal when I’m looking for specific styles. I was recently looking for Mary Janes with feminine detailing and came across Larroude Flats on The RealReal, where I purchased a pair of neutral scalloped accent flats. (Pictured here!)

Conscious Qualities: Secondhand

Size Range: US 3.5-14
Price Range: $9+

5. ESSĒN

ESSĒN elegant, minimalist footwear is artisan handcrafted from Leather Working Group-certified leather in solar-powered facilities in Italy, Portugal, and Spain. Each shoe also comes with a product passport where you can view the step-by-step journey that product took through the brand’s supply chain from raw material to manufacturing to packaging and distribution.

Beyond transparency and responsible manufacturing, ESSĒN’s slow fashion business model prevents overproduction by operating on a made to order basis. Meaning while sizes and styles are predefined, the shoes are only produced after they’ve been ordered.

Conscious Qualities: LWG Certified, Supply Chain Transparency, On Demand Production

Size Range: EU 35-44 (US 4-13)
Price Range: $295-$450

Chocolate brown leather classic flats

6. Allbirds

Another comfort-first footwear option besides Rothy’s is Allbirds. The brand creates lightweight, super smooth and breathable flats from tree fibers, aptly called “Tree Breezers”. The (washable) shoes are also soft enough to wear without socks.

The Allbirds Tree Breezers are far more comfortable than typical flats, though I find that the Rothy’s are slightly comfier.

Conscious Qualities: Natural materials (FSC-Certified eucalyptus, castor mean oil, sugarcane EVA)

Size Range: US 5-11
Price Range: $105-$125

Gray wool flats

7. Darzah

Fair trade certified by Fair Trade Federation, Darzah’s ethical flats are entirely hand-embroidered and handcrafted in Palestine from locally sourced leather.

The tatreez flats from this nonprofit are embroidered by refugee and low-income women artisans in the West Bank with this traditional Palestinian techniques.

Conscious Qualities: Sustains Heritage Crafts, Fair Trade Certified

Size Range: EU 36-41 (US 6-10)
Price Range: $199 – $209

Tatreez fair trade flats in red and blue

8. Nisolo

If you’re seeking a quality pair of classic leather flats ideal for your capsule wardrobe, Nisolo is a strong pick. Nisolo’s flats are handcrafted by artisans using leather sourced from a Leather Working Group certified tannery.

I’ve been wearing my Nisolo shoes for many years and can attest to their quality and durability.

That said, the brand has recently turned over to new ownership and now has significantly less information about their sustainability and ethics in their supply chain. I will be keeping a close eye on this brand to see if it continues to uphold the values Nisolo has long held.

Conscious Qualities: LWG-Certified, Artisan Handcrafted

Size Range: US 5-11
Price: $138 – $198

Tan square toe Mary Jane made from certified responsible leather

👗 For More Slow Fashion Content:

You May Also Want to Check Out:

The Best Affordable Ethical Fashion Brands

Responsibly Made Vegan Shoe Brands

15 Brands with Ethical Boots to Rock this Fall (and Beyond)

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Earth911 Inspiration: What Provides Survives — Simon M. Lamb

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Today’s quote is from writer, businessman, and conservationist Simon M. Lamb. In his book, Junglenomics: Nature’s Solutions to the World Environment Crisis, he suggests that nature provides solutions to help us reform our environmentally destructive economic practices.

Lamb writes, “As in nature, so in economics — what provides survives.”

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.

"As in nature, so in economics -- what provides, survives." --Simon M. Lamb

Editor’s Note: This poster was originally published on March 27, 2020.

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