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Deirdre McKay

@dccmckay.bsky.social

🇨🇦 Curious... about geography, migration and development... and the plastic waste it generates....

245 Followers  |  356 Following  |  47 Posts  |  Joined: 22.09.2023  |  1.812

Latest posts by dccmckay.bsky.social on Bluesky

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📣 The new Chair leading #PlasticsTreaty talks has been elected: Julio Cordano of Chile.

@enb.iisd.org’s Noémie Laurens breaks down the three main issues that the new Chair will have to face this year at INC 5.4. 👇

07.02.2026 17:52 — 👍 7    🔁 8    💬 0    📌 0
A stone statue surrounded by objects made of plastic stands outside as part of an art installation. Text overlaid reads, "Where the Global Plastics Treaty Talks Stand"

A stone statue surrounded by objects made of plastic stands outside as part of an art installation. Text overlaid reads, "Where the Global Plastics Treaty Talks Stand"

After two failed attempts to finalize the global #PlasticsTreaty, effective leadership is widely seen as critical for restoring momentum.

On Feb 7, governments will meet to select a new chair.

Learn where talks stand and why this meeting matters: https://bit.ly/45QnL5v

06.02.2026 11:51 — 👍 9    🔁 5    💬 0    📌 0
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UN chemicals panel talks end with little progress as procedural skirmishes eclipse science - Geneva Solutions Procedural disputes and geopolitical rivalries overshadowed the launch of a body in Geneva meant to assess the science on chemical pollution. Delegates now brace for similar tensions at plastics talks...

‘UN chemicals panel talks end with little progress as procedural skirmishes eclipse science’
Read the article by Michelle Langrand in Geneva Solutions: genevasolutions.news/climate-envi...

07.02.2026 11:28 — 👍 1    🔁 2    💬 1    📌 0
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The first meeting of the Intergovernmental Science-Policy Panel on Chemicals, Waste, and Pollution ended in paralysis.

Obstruction and geopolitics blocked agreement on basic rules needed for the Panel to function.

Read our full statement 👇
www.ciel.org/news/isp-cwp...

06.02.2026 21:28 — 👍 7    🔁 3    💬 0    📌 1
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‘Natural’ fibres in lakes: a 150-year sedimentary perspective on persistence Natural fibre textiles, such as cotton, are widely marketed as greener, biodegradable materials within the fashion and textiles industry. However, contemporary environmental assessments of whole (plas...

Are 'natural' fibres always 'better'? Some do seem to hang around... Our new paper on fibre persistence: ‘Natural’ fibres in lakes: a 150-year sedimentary perspective on persistence: iScience www.cell.com/iscience/ful...

04.02.2026 18:22 — 👍 0    🔁 0    💬 0    📌 0
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📢 New publication:

How should we communicate about scientific uncertainty - especially around environmental & health risks like microplastics? 🗣️💬

We ran an online experiment with 1,126 participants in Austria and found:

01.02.2026 13:35 — 👍 8    🔁 6    💬 1    📌 1
Quote from Abi Awomosu's substack, describing a response to seeing GenAI images 'as if the smell of burnt plastic was a feeling'

Quote from Abi Awomosu's substack, describing a response to seeing GenAI images 'as if the smell of burnt plastic was a feeling'

'The feeling of the smell of burnt plastic'.... absolutely capture the synasthesia of GenAI overwhelm

01.02.2026 13:12 — 👍 1    🔁 0    💬 0    📌 0

Interesting photo to illustrate that article, as the plastic produced for all those water bottles is part of what is keeping the fossil fuel industry alive.

Finding ways to provide safe drinking water that doesn’t use single-use PET bottles should be a bigger priority.

31.01.2026 16:59 — 👍 2    🔁 1    💬 0    📌 0
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One-Third of Pacific Island Fish Contaminated With Microplastics - Inside Climate News From the coral-covered coastlines of Tonga to the remote sandy atolls of Tuvalu, microscopic synthetic fibers are infiltrating the region’s species and food systems. One-third of fish living in Pacifi...

One-Third of Pacific Island Fish Contaminated With Microplastics.
Ahead of February’s Global Plastics Treaty negotiations, new data reveals the contamination rate of Fijian fish far exceeds worldwide averages.
insideclimatenews.org/news/2801202...

31.01.2026 12:10 — 👍 3    🔁 3    💬 0    📌 0
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Nano‐plastics disrupt systemic metabolism by remodeling the bile acid–microbiota axis and driving hepatic–intestinal dysfunction The pervasiveness of microplastic pollution poses a growing health risk, yet its long-term metabolic consequences remain poorly defined. Here, we exposed mice to polyethylene terephthalate nanopartic...

🧪 Nanoplastic exposure disrupts bile acid metabolism and gut microbiota, driving systemic metabolic collapse.
onlinelibrary.wiley.com/doi/10.1002/...

05.01.2026 13:16 — 👍 8    🔁 7    💬 0    📌 0
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Ottawa wins Federal Court appeal allowing single-use plastics ban to stand The federal government scored a win at the Federal Court of Appeal on Friday, which upheld its 2021 decision to list “plastic manufactured items” as toxic, and ultimately led to a ban on several types...

Ottawa wins Federal Court appeal allowing single-use plastics ban to stand

www.ctvnews.ca/sci-tech/art...

#singleuseplastics

30.01.2026 21:04 — 👍 7    🔁 2    💬 2    📌 1
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Plastic Pollution Promotes Hazardous Water Conditions, New Study Finds A new UC San Diego study reveals that fossil fuel-based plastic pollution may be promoting toxic water conditions by removing animals that keep water at safe levels. Biologically based plastics had a ...

🔬 NEW STUDY "In the new study, which compared different types of plastics across 30 experimental pond ecosystems, researchers found that fossil fuel plastics can lead to 'top down' effects by killing off the animals that eat algae." #PlasticPollutes #BreakFreeFromPlastic

30.01.2026 20:35 — 👍 5    🔁 2    💬 0    📌 1
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Global health impacts of plastics systems could double by 2040 | LSHTM The adverse health impacts associated with emissions across the full life cycle of plastics could double by 2040 unless immediate action is taken, new research suggests.The research identified health

Global health impacts of plastics systems could double by 2040 www.lshtm.ac.uk/newsevents/n...

#plasticpollution
#plasticslifecycle
#humanhealth
#globalwarming
#airpollution
#toxicchemicals

28.01.2026 11:58 — 👍 5    🔁 3    💬 0    📌 0
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Europe’s supermarket shelves packed with ‘misleading’ claims about recycled plastic packaging Manufacturers use method that labels plastic as ‘circular’ and climate-friendly, despite being mostly fossil-based

have a few papers in review that examine this issue, and the reality is that ‘circular’ claims often camouflage a reliance on chemical recycling technologies that are toxic and unproven

these claims should be understood as a strategy by corporate interests to distract and delay meaningful action

27.01.2026 17:15 — 👍 11    🔁 6    💬 0    📌 1
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Supersized illegal waste dumps hidden across English countryside A BBC investigation uncovers how criminals are operating huge illegal rubbish tips across the country.

This is not a sign of a functioning waste and resources system ... something is going horribly wrong. www.bbc.co.uk/news/article...

23.01.2026 07:32 — 👍 23    🔁 14    💬 1    📌 0
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The simple coffee choice that could reduce your exposure to microplastics Higher surface roughness of polythene cups may account for greater microplastic shedding, scientists say

www.independent.co.uk/news/science...

22.01.2026 09:56 — 👍 2    🔁 1    💬 0    📌 0
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Scientific rigour and the dangers of microplastics | Letters Letters: Joe Yates, Prof Philip J Landrigan, Prof Jennifer Kirwan and Prof Jamie Davies respond to an article on doubts raised about studies on microplastics in the human body

www.theguardian.com/environment/...

21.01.2026 20:30 — 👍 2    🔁 1    💬 0    📌 0
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Biodiversity collapse threatens UK security, intelligence chiefs warn Ecosystem destruction will increase food shortages, disorder and mass migration, with effects already being felt

Biodiversity collapse threatens UK security, intelligence chiefs warn

- “It is unlikely the UK would be able to maintain food security if ecosystem collapse drives geopolitical competition for food”

Story by @fionaharvey.bsky.social
www.theguardian.com/environment/...

21.01.2026 09:47 — 👍 56    🔁 33    💬 2    📌 2
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Even Antarctica Isn’t Safe: Microplastics Found Inside the Continent’s Only Insect Microplastics have entered Antarctica’s soil ecosystem, subtly affecting its only native insect and revealing how far human pollution now reaches. An international team of scientists led by researcher...

scitechdaily.com/even-antarct...

19.01.2026 14:15 — 👍 1    🔁 2    💬 0    📌 0
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Burning Plastic Waste for Household Fuel Endangers Millions  - Inside Climate News People in low-income urban communities in the Global South without access to reliable energy sources are burning the toxic plastic waste inundating their communities to cook and heat their homes.

New research reveals an unappreciated public health crisis: people living in slums in the developing world are increasingly burning the toxic plastic trash that surrounds their communities as a last-resort fuel to cook and heat their homes.

10.01.2026 00:16 — 👍 32    🔁 20    💬 3    📌 1
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Are our bodies full of microplastics or not? There’s a way to resolve this debate, and scientists must hurry | Debora MacKenzie This week’s furore is microplastics researchers’ ozone moment. If they fail, the powerful plastics lobby will step into the breach, says science journalist and author Debora MacKenzie

Are our bodies full of #microplastics or not? There’s a way to resolve this debate, and scientists must hurry, writes Debora MacKenzie

- This week’s furore is microplastics researchers’ ozone moment. If they fail, the plastics lobby will step into the breach

www.theguardian.com/commentisfre...

16.01.2026 11:30 — 👍 11    🔁 8    💬 2    📌 1
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Takeaway coffee cups release thousands of microplastic particles The material of your coffee cup matters more than you might think.

theconversation.com/takeaway-cof...

15.01.2026 09:25 — 👍 1    🔁 2    💬 0    📌 0

Q How pervasive are micro and nanoplastics, really? A. Not yet known.

Sensible advice: ."..squabbles in science can... throw out common-sense policies that curtail plastic use... we do not know what the future of microplastics research holds. We will have to keep doing it to find out."

14.01.2026 13:28 — 👍 1    🔁 0    💬 0    📌 0
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‘A bombshell’: doubt cast on discovery of microplastics throughout human body Exclusive: Some scientists say many detections are most likely error, with one high-profile study called a ‘joke’

Interesting to see the Guardian's @dpcarrington.bsky.social weighing in on this. My take, as someone covering microplastics heavily for the past year (and currently sitting at a 200+ person conference with many of the scientists in question):

www.theguardian.com/environment/...

13.01.2026 20:53 — 👍 176    🔁 78    💬 9    📌 15
Four bar charts from Fig. 3: “Plastic waste burning as a household fuel, according to the World Bank country income category and region” showing in the bottom two charts, “Plastic fuel use by income group”, which shows that burning waste plastic in traditional stoves is common, particularly among the lowest income groups; and “Plastic fuel use by regions”, which shows that the use of waste plastics is relatively high in all regions of Africa, followed by South Asia.

Source: Bharadwaj, B., Gates, T., Rose, S. et al. Prevalence of plastic waste as a household fuel in low-income communities of the Global South. Nat Commun 17, 50 (2026). https://doi.org/10.1038/s41467-025-67512-

Four bar charts from Fig. 3: “Plastic waste burning as a household fuel, according to the World Bank country income category and region” showing in the bottom two charts, “Plastic fuel use by income group”, which shows that burning waste plastic in traditional stoves is common, particularly among the lowest income groups; and “Plastic fuel use by regions”, which shows that the use of waste plastics is relatively high in all regions of Africa, followed by South Asia. Source: Bharadwaj, B., Gates, T., Rose, S. et al. Prevalence of plastic waste as a household fuel in low-income communities of the Global South. Nat Commun 17, 50 (2026). https://doi.org/10.1038/s41467-025-67512-

⚠️ A new study, based on information collected through a survey of 1,018 informants from cities in 26 countries in the Global South, finds that the use of waste plastics as fuel (for heat or cooking) by low-income households is much more prevalent than previously thought.

rdcu.be/eYJWj

12.01.2026 18:21 — 👍 7    🔁 5    💬 0    📌 1
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Household burning of plastic waste in developing world is hidden health threat, study shows The practice is ‘much more widespread’ than previously realised, researchers say, with serious environmental impact

www.theguardian.com/global-devel...

09.01.2026 08:47 — 👍 1    🔁 0    💬 0    📌 0
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One Year Later: Los Angeles Wildfires Reinforce Why We Must Rebuild with Less Plastic On the anniversary of the January 2025 wildfires in Los Angeles, California, experts stress the need to reduce plastics in buildings.

Don’t miss our blog and special report, “How Plastics Fuel Wildfires & How to Rebuild Better,” exploring the link between plastics and wildfires 👉 bit.ly/RebuildWithLessPlastic

#PlasticPollutes #LAWildfires #BreakFreeFromPlastic

08.01.2026 19:34 — 👍 4    🔁 1    💬 0    📌 0
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Microplastics are making it harder for oceans to absorb greenhouse gases, study warns Researchers say tackling plastic pollution is now part of fight against global warming

Microplastics interfere with photosynthesis in phytoplankton & impair zooplankton metabolism - both are central in ocean carbon cycling

Oceans absorb about 1/4 of CO2 released by human activity

If you're against climate change, you have to be against plastic

www.independent.co.uk/climate-chan...

08.01.2026 12:58 — 👍 38    🔁 19    💬 3    📌 0
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Plastic pollution requires urgent action, says author Judith Enck Judith Enck is a former regional administrator of the U.S. Environmental Protection Agency, appointed by President Barack Obama, and the founder of Beyond Plastics, an organization dedicated to…

[PODCAST]

Plastic pollution is no longer abstract.

Microplastics are now found in our brains, blood and breast milk — and across all parts of the planet.

On the Mongabay Newscast, Judith Enck explains why governments can’t wait, and how they can act now to cut plastic at the source.

07.01.2026 22:21 — 👍 16    🔁 12    💬 1    📌 0
An approaching tropical storm as viewed from a causeway bridge

An approaching tropical storm as viewed from a causeway bridge

Plastic hasn’t just polluted the land and oceans. Research has found microplastics in cloud water, which are influencing how clouds form by acting as seeds for ice crystals, thereby accelerating the formation of storms and increasing their strength. #WetTribe #TidetotheOcean #MicroplasticMonday

05.01.2026 15:53 — 👍 16    🔁 9    💬 0    📌 2

@dccmckay is following 20 prominent accounts