Tony R. Walker
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tonyrwalker1.bsky.social
Tony R. Walker
@tonyrwalker1.bsky.social
7.2K followers 4.8K following 1.4K posts

Professor, Dalhousie University, Nova Scotia, Canada 🇨🇦
Editor, Cambridge Prisms: Plastics
Born at 324 in 🇬🇧
#plasticpollution #singleuseplastic #microplastics #PlasticsTreaty #ClimateChange #SciComm #SciPol

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Environmental science 63%
Geography 16%
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tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 15d
Happy to share that I made the #Clarivate #HighlyCited2025 list again.

This time in 2 field categories (in the field of Environment and Ecology and in Cross-Field)!

#plasticpollution
#singleuseplastic
#microplastics
#PlasticsTreaty
#ClimateChange
#SciComm
#SciPol
@dalhousieu.bsky.social

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 3h
Unseen contaminants in #Portuguese reservoirs: linking #microplastics to ecological potential and human pressures

www.frontiersin.org/journals/tox...
Frontiers | Unseen contaminants in Portuguese reservoirs: linking microplastics to ecological potential and human pressures
The accumulation of microplastics (MPs) in aquatic environments is a contemporary concern of great relevance, however, freshwater ecosystems, particularly re...
www.frontiersin.org

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 3h
Microplastics in soil–plant systems: impacts on soil health, plant toxicity, and multiomics insights

link.springer.com/article/10.1...

#Plastics
#Microplastics
#Agriculture
#OneHealth
Microplastics in soil–plant systems: impacts on soil health, plant toxicity, and multiomics insights - Plant Cell Reports
Microplastic pollution has emerged as a critical environmental concern, particularly in agricultural soils, where various MP types, including polyethylene, polystyrene and polyvinyl chloride accumulat...
link.springer.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8h
#Plastic #recycling: A panacea or environmental #pollution problem

www.nature.com/articles/s44...
Plastic recycling: A panacea or environmental pollution problem - npj Materials Sustainability
npj Materials Sustainability - Plastic recycling: A panacea or environmental pollution problem
www.nature.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8h
Recycling alone cannot end the plastic pollution crisis

www.cell.com/cell-reports...

#plasticpollution
#Recycling
#Reduce
#Reuse
Recycling alone cannot end the plastic pollution crisis
Recycling has been touted as a solution to combat the global plastic pollution crisis, but recycling rates of 10% are ineffective against annual plastic production of >460 million tonnes. Solutions be...
www.cell.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8h
Turning off the tap or drastically reducing production of cheap, subsidized virgin #plastic production will certainly help drive increased domestic #recycling, but until disincentives for low cost virgin #plastics are imposed, then there will be no market demand for #recycled plastics.
Recycling alone cannot end the plastic pollution crisis
Recycling has been touted as a solution to combat the global plastic pollution crisis, but recycling rates of 10% are ineffective against annual plastic production of >460 million tonnes. Solutions be...
www.cell.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8h
🇬🇧 UK can create 5,400 jobs if it stops plastic waste exports, report finds

www.theguardian.com/environment/....
UK can create 5,400 jobs if it stops plastic waste exports, report finds
Campaigners say closure of loophole making it cheaper to export rather than recycle will boost circular economy
www.theguardian.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8h
Exactly!

#Recycling doesn't work, especially without caps on plastic production.

Recycling alone cannot end the plastic pollution crisis

www.cell.com/cell-reports...
Recycling alone cannot end the plastic pollution crisis
Recycling has been touted as a solution to combat the global plastic pollution crisis, but recycling rates of 10% are ineffective against annual plastic production of >460 million tonnes. Solutions be...
www.cell.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 9h
International environmental treaties cannot be reformed through rational design

doi.org/10.1038/d415...
International environmental treaties cannot be reformed through rational design
Letter to the Editor
doi.org

Reposted by Tony R. ‎Walker

yorkshirebylines.co.uk
Yorkshire Bylines @yorkshirebylines.co.uk · 11h
Plastic pollution: a crisis requiring systemic change

Plastic pollution is worsened by warming climate and must be stemmed, researchers warn

By Brian McHugh
Plastic pollution: a crisis requiring systemic change
Plastic pollution is worsened by warming climate and must be stemmed, researchers warn
yorkshirebylines.co.uk

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 15h
Engaging Local Communities to Prevent, Reduce and Retrieve Ghost Gear in North America

www.cec.org/events/ghost...
Engaging Local Communities to Prevent, Reduce and Retrieve Ghost Gear in North America
CEC events range from large public consultations to small, expert meetings on specific environmental issues.
www.cec.org

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 15h
Fining big polluters can reduce environmental damage, but only if the fines match the crimes

www.dal.ca/news/2024/04...

@dalhousieu.bsky.social
Fining big polluters can reduce environmental damage, but only if the fines match the crimes
Fining companies that flout environmental regulations is an effective strategy, if the penalties are severe enough.
www.dal.ca

Reposted by Tony R. ‎Walker

infopointa.bsky.social
Infopoint #Klimawandel #Artensterben @infopointa.bsky.social · 1d
OECD Report
Environmental Outlook on the Triple Planetary Crisis
Stakes, Evolution and Policy Linkages
www.oecd.org/en/publicati...

"The triple planetary crisis is set to intensify, with compounding impacts"

Projections of intensifying and mutually reinforcing environmental degradation in 2050
Screenshot "Projections of intensifying and mutually reinforcing environmental degradation in 2050", Source OECD (2025) Link https://www.oecd.org/en/publications/environmental-outlook-on-the-triple-planetary-crisis_257ffbb6-en.html

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 1d
🚨New #OECD report about our triple planetary crisis
🌍🌎🌏 ⬇️

Links between #climatechange, #biodiversity loss and #pollution highlight need for policies that work together

www.oecd.org/en/about/new...
Links between climate change, biodiversity loss and pollution highlight need for policies that work together
Environmental challenges are becoming increasingly interconnected, with climate change, biodiversity loss, pollution and resource pressures reinforcing one another in ways that require policies in eac...
www.oecd.org

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 2d
The Forum will examine how scientific innovation, traditional knowledge, emerging regulatory and policy measures, corporate accountability and multi-actor engagement can deliver practical and lasting solutions.

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 2d
Looking forward to participating as an invited panelist next week in Montreal in this Public Forum: Regenerating North America’s Future ⬇️

www.cec.org/events/jpac-...

@dalhousieu.bsky.social

🇨🇦
🇲🇽
🇺🇸
JPAC Public Forum: Regenerating North America’s Future
CEC events range from large public consultations to small, expert meetings on specific environmental issues.
www.cec.org

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 2d
Un estudio en Canadá detecta microplásticos en la carne de las langostas de mar

ici.radio-canada.ca/rci/es/notic...
Detectan microplásticos en la carne de las langostas de mar | RCI
En experimentos, los microplásticos en ratones causaron una restricción del crecimiento fetal, alteración del metabolismo y desarrollo cerebral anormal.
ici.radio-canada.ca

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 2d
A call to ban non-essential microplastics used in cosmetics, festival and holiday decorations

www.cambridge.org/core/journal...

#micoplastics
#plasticpollution
#christmas
#holidays
#festivals
#glitter
#fakesnow
A call to ban non-essential microplastics used in cosmetics, festival and holiday decorations | Cambridge Prisms: Plastics | Cambridge Core
A call to ban non-essential microplastics used in cosmetics, festival and holiday decorations - Volume 3
www.cambridge.org

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 2d
@dalhousieu.bsky.social
@fao.org
#OneHealth
#PlasticPollution
#Microplastics
#Agrifood

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 2d
📌 I was in Rome last week to participate in an invited FAO workshop on “Plastics and One Health in Agrifood Systems: Understanding and Managing Risks” followed by my presentation at the PhD Winter School "Sustainable Agrifood Systems and Plastic Pollution: A One Health Vision"

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 3d
This morning I've already received 3 prospective PhD student requests. I typically receive several per day.

Many applicants are great, but I simply cannot accept them all as I have limited funding and nobody can supervise 500 PhD students, no matter how great they are!!!!

@dalhousieu.bsky.social

Reposted by Tony R. ‎Walker

beyondplastics.bsky.social
Beyond Plastics @beyondplastics.bsky.social · 4d
To many marine animals, plastic pollution resembles food. A new study finds seabirds, sea turtles and marine mammals like porpoises, seals and whales don't have to eat much of it for it to be deadly.

www.npr.org/2025/11/20/n...
Eating just a handful of plastic can be fatal for marine animals, a study finds
Scientists have long known that plastic waste is bad for marine animals. A new study quantifies how little ingested plastic it takes to be a lethal dose.
www.npr.org

Reposted by Tony R. ‎Walker

fossilfreeusa.bsky.social
fossilfreeusa.bsky.social @fossilfreeusa.bsky.social · 5d
#SouthernWater is source for plastic beads & has apologized. Dead sea animals already found How to limit your exposure to microplastics #14otherUKsewageplantsalsouseplasticbeads.
bbc.com/reel/video/p...
How to limit your exposure to microplastics
Research has shown that we are becoming more exposed to microplastics. What can we do about it?
bbc.com

Reposted by Tony R. ‎Walker

ericroyphd.bsky.social
Eric Roy, Ph.D. @ericroyphd.bsky.social · 5d
Microplastics Could be Fueling Heart Disease?

New study out of @UCRiverside 

https://www.sciencedaily.com/releases/2025/11/251118220047.htm

#Microplastics #health
Everyday microplastics could be fueling heart disease
Microplastics—tiny particles now found in food, water, air, and even human tissues—may directly accelerate artery-clogging disease, and new research shows the danger may be far greater for males. In mice, environmentally realistic doses of microplastics dramatically worsened plaque buildup, altered key vascular cells, and activated harmful genes linked to inflammation and atherosclerosis, all without changes to weight or cholesterol.
www.sciencedaily.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 5d
Ciao, ciao Rome!

Reposted by Cas Mudde, Tony R. ‎Walker, Steve Peers , and 2 more

atrupar.com
Aaron Rupar @atrupar.com · 6d
Enten: "This is probably the worst 10 day period for the president in the polls his entire second term. The numbers are just atrocious ... when your best poll has you 14 points underwater, you know it's truly bad and it's as bad as 26 points underwater ... -43 with independents! They despise him."

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 6d
Un estudio en Canadá detecta microplásticos en la carne de las langostas de mar

ici.radio-canada.ca/rci/es/notic...

#microplastics
Detectan microplásticos en la carne de las langostas de mar | RCI
En experimentos, los microplásticos en ratones causaron una restricción del crecimiento fetal, alteración del metabolismo y desarrollo cerebral anormal.
ici.radio-canada.ca

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8d
Emerging US #EPR programs spark harmonization talks

resource-recycling.com/plastics/202...
Emerging US EPR programs spark harmonization talks
Extended producer responsibility legislation has rapidly expanded across the United States over the past two years, with seven states enacting packaging-focused laws that now cover approximately 20% o...
resource-recycling.com

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 8d
Finally arrived at the UN 🇺🇳 FAO.

@dalhousieu.bsky.social
@dalfaculty.bsky.social
@fao.org

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 10d
Roaming around #Rome (Cont’d).

Visited the Vatican, Pantheon, Colosseum, Castel Sant’ Angelo, Fort Ramano and the UNFAO HQ.

tonyrwalker1.bsky.social
Tony R. Walker @tonyrwalker1.bsky.social · 10d
Hi Paul, I always have aspirations to do a part run on these international trips. But then I realise my flights arrive on Saturday afternoon and leave Saturday morning. Damn! The good news is I got plenty of steps in today.