On the first day of the United Nations Ocean Conference in Nice, France, the findings of a new study have revealed that ocean acidification (OA) — which damages ecosystems like coral reefs — is not only getting worse, but crossed its “planetary boundary” roughly five years ago.
The findings came as a surprise, as scientists in a report published last year said OA was “approaching a critical threshold,” but had not yet crossed the boundary.
The nine defined planetary boundaries in which Earth can operate safely include climate change, freshwater use and OA.
“OA is the term given to the long-term shift of marine carbonate chemistry resulting primarily from the uptake of carbon dioxide (CO2) by the oceans, leading to an increase in ocean acidity and a decrease in carbonate ion (CO32−) concentration,” the authors of the study wrote. “OA can severely affect marine organisms through its direct impact on physiology, growth, survival and reproduction.”
The researchers pointed out that ocean conditions vary widely across the world, with OA levels in tropical regions over two times as high as in polar regions.
“Looking across different areas of the world, the polar regions show the biggest changes in ocean acidification at the surface. Meanwhile, in deeper waters, the largest changes are happening in areas just outside the poles and in the upwelling regions along the west coast of North America and near the equator,” said lead author of the report Helen Findlay, a professor at the United Kingdom’s Plymouth Marine Laboratory (PML) and chair of the North-East Atlantic Ocean Acidification Hub, in a press release from PML.
The study, led by PML, the National Oceanic and Atmospheric Administration in the United States and Oregon State University’s Cooperative Institute for Marine Resources Studies (CIMERS), said OA’s threat to marine ecosystems globally is much more widespread than previously believed.
The research team used the most recent chemical and physical measurements of the upper ocean, along with studies of marine life and advanced computer models to conclude that by 2020, average ocean conditions globally were already very near — and in some regions had already surpassed — the OA “danger zone.”
“Most ocean life doesn’t just live at the surface – the waters below are home to many more different types of plants and animals. Since these deeper waters are changing so much, the impacts of ocean acidification could be far worse than we thought. This has huge implications for important underwater ecosystems like tropical and even deep-sea coral reefs that provide essential habitats and nursing refuge for many species, in addition to the impacts being felt on bottom-dwelling creatures like crabs, sea stars, and other shellfish such as mussels and oysters,” Findlay explained.
Professor Helen Findlay working in the laboratory to investigate the impacts of climate change and ocean acidification on marine organisms and ecosystem functioning. Plymouth Marine Laboratory
The team discovered that roughly 60 percent of deeper ocean waters — down to approximately 656 feet — had crossed the planetary boundary for OA — compared with 40 percent at the surface. The increase in acidification has enormous implications for the survival rates of many sea creatures, particularly those who build their skeletons or shells from calcium carbonate.
Some subtropical and tropical coral reefs have already lost 43 percent of suitable habitats, while pteropods, a main food web species in the polar regions — also known as “sea butterflies” — have lost as much as 61 percent of their habitat. Additionally, 13 percent of the habitats of coastal shellfish species have been lost worldwide.
Based on the findings, the scientists recommended that a change be made to the previous safety limit of a 10 percent deviation from pre-industrial levels being harmful to ocean ecosystems, as the entire surface of the ocean had already exceeded the stricter limit by about the year 2000.
“Ocean acidification isn’t just an environmental crisis – it’s a ticking time bomb for marine ecosystems and coastal economies. As our seas increase in acidity, we’re witnessing the loss of critical habitats that countless marine species depend on and this, in turn, has major societal and economic implications.” said Steve Widdicombe, a professor at PML who is co-chair of the Global Ocean Acidification Observing Network, one of the focuses of the UN’s sustainable development goal of addressing and minimizing the effects of OA.
“From the coral reefs that support tourism to the shellfish industries that sustain coastal communities, we’re gambling with both biodiversity and billions in economic value every day that action is delayed,” Widdicombe added.
The authors of the study suggested conservation measures should be directed toward to species and regions that are most vulnerable to acidification. They also emphasized the importance of suitable management measures or protection of areas that are the least compromised by acidification to ensure their longevity.
The newly identified subsurface water impacts highlight a pressing need to safeguard mid-water habitats and their marine life. The researchers stressed the importance of improved approaches to addressing OA, as well as other ocean pressures, to better support stronger ecosystem resilience.
“This report makes it clear: we are running out of time and what we do – or fail to do – now is already determining our future,” said Jessie Turner, director of the International Alliance to Combat Ocean Acidification, who was not part of the study, as The Guardian reported. “We are coming to terms with an existential threat while grappling with the difficult reality that much suitable habitat for key species has already been lost. It’s clear that governments can no longer afford to overlook acidification in mainstream policy agendas.”
The study, “Ocean Acidification: Another Planetary Boundary Crossed,” was published in the journal Global Change Biology.
TOMORROW
Join the launch of the #COP30 Virtual Ocean Pavilion during #UNOC3!
10 June |
10–11 AM CEST |
Zoom
Join via Zoom here: us02web.zoom.us/j/8955059069…— Plymouth Marine Laboratory (@plymouthmarine.bsky.social) June 9, 2025 at 2:11 PM
The post ‘Ticking Time Bomb’ of Ocean Acidification Has Already Crossed Planetary Boundary, Threatening Marine Ecosystems: Study appeared first on EcoWatch.
https://www.ecowatch.com/ocean-acidification-planetary-boundary.html
Today’s quote is from Native American author and poet Sherman Alexie. In his award-winning book for young people, The Absolutely True Diary of a Part-Time Indian, he wrote: “The world, even the smallest parts of it, is filled with things you don’t know.”
Take some time today to quietly observe the world around you and celebrate the wonders of our planet, our home.
Earth911 inspirations. Post them and 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: Filled With Things You Don’t Know appeared first on Earth911.
https://earth911.com/inspire/earth911-inspiration-filled-with-things-you-dont-know/
Last Updated on March 11, 2026
This post was sponsored by Casamera. All thoughts and opinions are my own; for more information, please see my disclosure policy.
Have you ever seen those ‘everything shower’ videos trying to convince you to use 12+ products on your skin and hair? Including plastic poufs destined for landfill in 2 months time?
All you really need is a bar of soap, shampoo/conditioner, safety razor, and something natural to lather with. Enter Casamera, a sustainable brand who creates konjac sponges for face and body (aka all-natural shower sponges).
But what exactly is a konjac sponge? And are they all created equal? Here’s everything you need to know so you can ditch plastic poufs for good.
What Is a Konjac Sponge?
A konjac sponge is a natural skin exfoliant made from the konjac plant, a root vegetable. To make konjac sponges, the konjac tubers are harvested and fiber (glucomannan) is extracted from the root.
The fiber is mixed with water and various other natural ingredients to form a gel-like mixture. This mixture is poured into molds to create the desired shape and size. It’s then steamed to solidify and stabilize the structure.
Casamera makes all-natural shower sponges that include konjac powder as one of the four natural ingredients it takes to make one. Their scrubbers come in a variety of infusions, such as charcoal (best for oily/acne-prone skin), matcha, volcanic mud, peppermint, and walnut.
But not all konjac sponges are the same: Casamera’s dual-sided design has one soft side and one exfoliating side (powered by natural walnut shells), making it suitable for both face and body.
Most conventional konjac sponges are for facial skincare only, making Casamera’s a perfect replacement for plastic poufs. The ergonomic handle fits perfectly in your hand, and you can easily hang it up to dry after use.
Konjac Sponge Benefits
The best known benefits of using a konjac sponge are cleansing and gently exfoliating skin. It’s extremely gentle, so it can help unclog pores, especially helpful to those with oily or acne-prone skin.
Casamera’s sponges are also 100% compostable, unlike plastic poufs destined for landfills. It’s also dual sided: The honeycomb side is perfect for washing up whereas the other side exfoliates for deep cleaning.
Plastic poufs can also smell moldy after just a week. Casamera’s scrubbers don’t have that problem because they’re antimicrobial and fast-drying. Which means less replacements and more money saving!
You’re also not scrubbing microplastics onto your body and down the drain. Casamera’s sponges are plastic-free, even down to their low-waste shipping materials. Plus they plant trees to offset their carbon footprint from manufacturing and shipping!
There’s three different sizes: The OG, the XL and the mini. The mini is great for the face, OG works as an ideal body scrubber, and XL is perfect for smothering your body (and backside) in soapy suds.
How to Use a Konjac Sponge (Step-by-Step)
To use Casamera’s scrubbers, here’s a simple step by step routine that’s easy to remember:
- Presoak the scrubber with water
- Apply body wash to it (I love Plaine Products refillable body wash)
- Scrub away!
- Rinse it out (make sure there’s no suds or water left)
- Hang it dry (ideally in a well-ventilated area)
How Long Do Konjac Sponges Last?
If properly maintained, a konjac sponge can last 2-3 months or longer depending on use. To sanitize it, once a week, add the sponge to a bowl of boiling water for a couple of minutes.
If you’re using the sponge daily, be mindful it may deteriorate faster. If you see a difference in color, texture, or a strange smell, replace it.
Getting the scrubber pack is ideal because you’ll get three sponges in one pack, enough to last months!
Konjac Sponge vs Face Wipes
While makeup wipes may be considered easy and convenient, they also tend to be saturated in harsh chemicals that can irritate your skin (some may even contain PFAs).
Plus face wipes are single-use, meaning they’ll end up in a landfill somewhere or worse – fatbergs. Fatbergs are massive, solidified blockages in sewer systems made up of oils, grease, fats, and non-biodegradable items (like wet wipes).
Whatever you choose to use, never flush face wipes down the toilet – even if it says flushable.
Konjac sponges are reusable and capable of removing your makeup without the use of questionable ingredients. Just soak it in water, add your favorite cleanser, and watch the grime and makeup come right off!
And when they’re at the end of their life, they can be composted, instead of polluting our sewers.
Is a Konjac Sponge Worth It?
Yes, a konjac sponge is worth it (specifically Casamera’s) and here’s a quick recap as to why:
- Made using 4 clean ingredients (konjac powder, water, walnut shells, + infusion)
- Gently exfoliates + washes skin
- 100% compostable, doesn’t shed microplastics
- Easy to use in 5 steps
- Comes in a variety of infusions for every skin type
- Will last 2–3 months or longer depending on use
- Ships plastic-free
- OneTreePlanted partner
So, would you give konjac sponges a try? Let me know in the comments!
And, a huge thank you to Casamera for sponsoring this post. Be sure to visit Casamera.com to get your hands on their rejuvenating scrubber pack!
The post Ditch the Plastic Pouf: Try This All-Natural Shower Sponge Instead appeared first on Going Zero Waste.
Ditch the Plastic Pouf: Try This All-Natural Shower Sponge Instead
Green Living
Best of Sustainability In Your Ear: Carbon Direct Chief Scientist Julio Friedmann on the Path to Carbon Removal
The scale of our climate challenge is staggering: humans have pumped 1.6 trillion tonnes of carbon dioxide into the air and oceans since 1750, and we’re adding another 40 billion tonnes every year. Even with dramatic emissions reductions, we’re still on track to blow past 1.5 degrees of warming, the Paris Accord target first breached in 2024. Tune in to a conversation with Dr. Julio Friedmann, Chief Scientist at Carbon Direct. This carbon management company partners with Fortune 500 companies such as Microsoft, JPMorgan Chase, and American Express to transform net-zero commitments into science-backed action plans. After a career that began as a researcher at ExxonMobil and included service at Lawrence Livermore National Laboratory, Columbia University’s energy policy center, and running advanced energy programs in the Obama administration’s Department of Energy, Julio brings unique expertise to the intersection of massive climate challenges and current technological capabilities.
As companies work toward 2030 and 2050 carbon goals, the question isn’t whether we’ll need massive carbon removal—it’s whether we can deploy it fast enough and fairly enough to matter. The recent $100 million XPRIZE Carbon Removal awards highlighted the diversity of approaches being pursued, with natural solutions like enhanced rock weathering using basalt and azomite soil, and biochar applications to farmland dominating the winners. But how do these technologies stack up against the hype? Friedmann provides a realistic assessment of where Direct Air Capture, ocean alkalinity enhancement, and other carbon removal approaches stand today. Carbon Direct’s team of 70+ scientists changes the conversation with corporate clients about their carbon strategies, providing the scientific firepower to offer hard feedback about what’s needed to preserve the markets, supply chains, and revenue streams companies depend on. You can learn more about Carbon Direct’s work and explore their library of climatetech reports at https://www.carbon-direct.com/
- Subscribe to Sustainability In Your Ear on iTunes
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The post Best of Sustainability In Your Ear: Carbon Direct Chief Scientist Julio Friedmann on the Path to Carbon Removal appeared first on Earth911.
https://earth911.com/podcast/sustainability-in-your-ear-carbon-direct-chief-scientist-julio-friedmann-on-the-path-to-carbon-removal/
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