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Marney Isaac

@marneyisaac.bsky.social

University of Toronto professor | Canada Research Chair in Agroecosystems | agroecology, crop diversity, soil fertility, agroforestry, sustainable food systems, urban agriculture

5,006 Followers  |  575 Following  |  61 Posts  |  Joined: 10.02.2024
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Posts by Marney Isaac (@marneyisaac.bsky.social)

Plant facilitation in rooftop agriculture: disentangling plant interactions for sustainable crop production on extensive green roofs | Renewable Agriculture and Food Systems | Cambridge Core Plant facilitation in rooftop agriculture: disentangling plant interactions for sustainable crop production on extensive green roofs - Volume 40

Now out! New paper on plant facilitation in rooftop agriculture. We disentangling plant interactions for sustainable crop production on green roofs. Roofs offer so much potential for #urbanagriculture - we apply ecological principles to achieve positive outcomes.

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

23.12.2025 14:31 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Canadian Society of Soil Science is on bluesky!

Give them a follow:

@cssssoils.bsky.social

15.12.2025 20:29 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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Agricultural money laundering at its finest.

How about a shift to some non-fertilizer based crop nutrient acquisition strategies (organic amendments, intercropping, bio-inputs) to free farmers from this agriculture welfare state being created.

09.12.2025 12:07 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Soil quality changes along an agroecological transition: Evidence from natural farming in Madhya Pradesh, India The scale and intensity of current agricultural practices have negative impacts on soil quality. Shifting to agroecological and natural farming practi…

New paper out on soil quality along an agroecological transition. Our findings show that transitioning to natural farming, even after just 2 years of removing pesticides and adding bio-inputs, had positive detectable effects on soil health.

#agroecology #soil

www.sciencedirect.com/science/arti...

03.11.2025 16:19 β€” πŸ‘ 13    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0
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Alternative federal budget 2026: Agriculture - CCPA What the Canadian government should do on agriculture. Because true independence needs a new economic model.

β€œβ€¦develop a non-market farmland acquisition program in the peri-urban areas of every province to ensure Class 1 and 2 farmland is available for food production at rental/lease rates aligned with the land’s food production value”

YES PLEASE πŸ™

www.policyalternatives.ca/news-researc...

29.10.2025 11:04 β€” πŸ‘ 8    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Proud to launch Agronomy for Sustainable Development (ASD) on Bluesky. This international journal, ranked second worldwide in Agronomy, publishes novel experimental, empirical and theoretical research, review and meta-analysis articles aimed at improving agricultural and food systems sustainability.

10.10.2025 08:51 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Ever wondered what your food really costs?
Behind every bite lies a web of invisible costs to people & planet.

This #WorldFoodDay2025, join GAIN, True Price Foundation, ATNI & the Netherlands Food Partnership for a deep dive into #TrueCostAccounting.

@stefanbnilsson.bsky.social

08.10.2025 07:42 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Paris Pedals to the Top: How the City of Light Became Europe’s Best for Young Cyclists The French capital has officially become Europe’s best city for children to walk, cycle, and move around independently

β€œIn a city once choked with cars and infamous for its traffic snarls, Paris has pulled off a remarkable turnaround…the French capital has officially become Europe’s best city for children to walk, cycle, and move around independently.” Via @momentummag.bsky.social

A victory for FAST leadership.

08.10.2025 01:16 β€” πŸ‘ 759    πŸ” 218    πŸ’¬ 7    πŸ“Œ 29
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Land tenure (in) security in the context of urban flood risk in Ghana The increasing incidence of floods driven by urbanization and climate change destabilizes urban social, economic and environmental systems where land …

A new paper out in Land Use Policy - β€œLand tenure (in)security in the context of urban flood risk in Ghana.”

We show that flood risk management through post-flood land use planning has potential to have dual impacts on community resilience and tenure security.

www.sciencedirect.com/science/arti...

05.10.2025 09:56 β€” πŸ‘ 5    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Paris before and after street transformation

Paris before and after street transformation

New urban forest planted in front of Paris City Hall

New urban forest planted in front of Paris City Hall

A Paris β€œSchool Street” where cars are removed and people space/tree planting are added

A Paris β€œSchool Street” where cars are removed and people space/tree planting are added

According to the City of Paris, in the last 10 years 150K trees have been planted & 45ha of parks created in the already hot city, all intended to not only improve quality-of-life today, but also help the city adapt to & manage summer heatwaves of 50℃ (122F) by 2050.

Just the start.

Common sense.

05.10.2025 02:45 β€” πŸ‘ 1440    πŸ” 353    πŸ’¬ 13    πŸ“Œ 40
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Currently at the La Baldi artist residency working on integrating science into art. My collective uses an ecological lens to make art that explores climate change, following in the literary genre of cli fi. An honour to have the space and time to do this. #clifi #climatechange #interdisciplinaryart

04.10.2025 07:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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CULTIVATE is an evolving collection of interdisciplinary artists, writers, and researchers driven by investigations of land, place, and the commons.

I will be joining CULTIVATEs La Baldi Residency as part of a collective next week. Such an honour. More to come…

www.cultivateprojects.net/la-baldi

22.09.2025 12:59 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Exploring Rooftop Agriculture Research at the University of Toronto Guided tour and presentations on field research conducted at UofT

Exploring Rooftop Agriculture Research at the University of Toronto!

This event brings together research teams to showcase ongoing work and explore future opportunities for integrating rooftop agriculture into Toronto’s green infrastructure.

Register here:

www.eventbrite.ca/e/exploring-...

18.09.2025 15:32 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
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Our research program on urban and peri-urban agriculture is now on IG. Give us a follow!

@urbanagroecology

And for more info on research progress and outputs, check:

utsc.utoronto.ca/foodandfarm/...

@sshrc-crsh.canada.ca
@utsc.utoronto.ca

#urbanagriculture #climatemitigation #agroecology

16.09.2025 11:20 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

New starter pack! go.bsky.app/9mZrrpQ

10.09.2025 11:35 β€” πŸ‘ 14    πŸ” 6    πŸ’¬ 1    πŸ“Œ 1
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Great day sampling our new agricultural trials. Gas fluxes, leaf physiology, and crop trait strategies under various organic amendments in different urban and peri-urban environments…

#agroecology #urbanagriculture

16.07.2025 23:39 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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The Food System’s Fossil Fuel Crisis From fertilizer to packaging, fossil fuels are flooding the food systemβ€”this report shows what it will take to stop it.

Industrial food systems are driving fossil fuel use – and vice versa.

@foodtank.bsky.social covers our #FuelToFork report, unpacking how food's fossil fuel addiction drives risks for climate, ecology, health, and food access – and how we can break the cycle.

πŸ”— foodtank.com/news/2025/07...

07.07.2025 10:05 β€” πŸ‘ 17    πŸ” 15    πŸ’¬ 0    πŸ“Œ 0
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🌱 How can we grow a more resilient future, together?

Join Roots of Resilience – Enhancing #Biodiversity through #Agroecology
πŸ“… Wed 9 July
⏲️ 10–12 CET
πŸ”— www.eventbrite.co.uk/e/agroecolog...

Explore research, farmer insights & policy with #AgroecologyTRANSECT

#HorizonEurope

01.07.2025 08:33 β€” πŸ‘ 6    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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Agroecology can’t grow on broken ground: farmers leading the degrowth transition Jonai Farms shows how agroecology and degrowth can work hand in hand to build just, resilient food systems rooted in care, community and ecological balance.

Agroecology and degrowth are more than ideas at Jonai Farms – they shape how food is grown, shared and valued.

This story looks at what it takes to build a just food system, starting from the ground up.

Read the full feature by SEI's Aziliz Le Rouzo: www.sei.org/features/agr...

23.06.2025 12:50 β€” πŸ‘ 16    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0
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How can agroecology build a more biodiverse, resilient EU food system?

🌱Join our #AgroecologyTRANSECT Virtual Roadshow!
πŸ“… Wed 9 Jul, 10–12 CETπŸ‘‡
www.eventbrite.co.uk/e/agroecolog...

πŸ¦‹ Explore real-world solutions for #biodiversity & #ClimateResilience with visual storytelling & dynamic discussion

24.06.2025 11:06 β€” πŸ‘ 8    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
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Joint environmental and social benefits from diversified agriculture Agricultural simplification continues to expand at the expense of more diverse forms of agriculture. This simplification, for example, in the form of intensively managed monocultures, poses a risk to ...

Honoured to share that our paper on the environmental and social benefits of diversified agriculture won the Frontiers Planet Prize! Proud of the team & thrilled that these important agricultural systems are recognized.

www.frontiersplanetprize.org

#agroecology

www.science.org/doi/full/10....

24.06.2025 19:29 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Shame on Metrolinx for not having the foresight to plan for urban trees. My neighbourhood tree is coming down today. This is not NIMBYism, this is just bad planning and lack of any actual serious consultation.

@toronto.ca
@petertabuns.bsky.social
β€ͺ@juliedabrusin.bsky.social

#metrolinx

30.05.2025 13:07 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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A mayor, a provincial minister and a member of parliament, all out to support the expansion of urban agriculture in hydro corridors! πŸ‘
#agroecology #toronto

03.05.2025 18:47 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 1
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Estimating the urban heat-related mortality burden due to greenness: a global modelling study This modelling study suggests that increased greenness could substantially reduce the heat-related mortality burden. Preserving and expanding greenness might be potential strategies to lower ambient t...

Increasing urban vegetation by 30% could have prevented 30% of all heat-related deaths, potentially saving up to ~1.1 million lives globally from 2000 to 2019, according to a study of over 11,000 urban areas.

Any lessons for the future…

www.thelancet.com/journals/lan...

03.05.2025 06:58 β€” πŸ‘ 45    πŸ” 20    πŸ’¬ 1    πŸ“Œ 2

Thanks! And yes please feel free to reach out…

25.04.2025 20:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Hi! Yes we will sample for SOM, POM, POX, total C and GHG fluxes. We have in-depth surveys for practices to do life cycle analysis too.

24.04.2025 20:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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New field site visits today! Launching research trials in urban and peri-urban agriculture with amendment and crop diversity trials in hydro corridors, next to major highways and right in the city, sampling everything from microbial communities, to soil health, to pollinators, to yield.
#toronto

24.04.2025 00:04 β€” πŸ‘ 24    πŸ” 2    πŸ’¬ 2    πŸ“Œ 0
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A More Diverse Agriculture for the Future of Our Planet β€” Frontiers Planet Prize Zia Mehrabi from the University of Colorado Boulder, National Champion for the USA, presents groundbreaking research from a global collaboration showing how increasing on-farm diversity improves both ...

Great to see our paper on diversified agricultural systems, published in Science, selected as a 2025 national Frontiers Planet Prize champion!

This global dataset was curated by an amazing team of researchers working in agriculture and sustainability.

www.frontiersplanetprize.org/news/nsh4fah...

22.04.2025 14:51 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Canada professors association tells academics to stay away from US The announcement comes as President Donald Trump continues to crack down on higher education and international students.

CAUT writes: β€œTravellers leaving or returning to Canada, particularly those traveling to the U.S., are increasingly vulnerable to preclearance zones and border searches that may compromise research confidentiality and academic freedom,”

www.politico.com/news/2025/04...

15.04.2025 21:24 β€” πŸ‘ 30    πŸ” 23    πŸ’¬ 3    πŸ“Œ 4
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US coffee drinkers in for double shot of pain from tariffs Beans and chocolate prices set to rise as a result of new levies

β€œCoffee companies around the world… have been hit by record coffee prices owing to unfavourable weather conditions in growing regions”

Lessen the pain of tariffs with agroforestry - with the right management #agroforestry can reduce climatic stressors in coffee farms.

www.ft.com/content/a3ce...

04.04.2025 10:49 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0