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

Agriculture in the middle- large scale agriculture, small scale farms but what about midsized farm transitions? What policies, infrastructure, markets, and training are needed for agroecological transitions? Tackled this issue in Toronto with both production and distribution stakeholder input.

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According to the City of Paris, in the last 10 years 150K trees have been planted, and 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. Keep going with this, Paris.

Before-and-after green street transformation in ParisTransformation of urban Square into forest in front of Paris City HallStreet transformation of “School Street“ in central Paris, including greening

In first research meetings from our Frontiers Planet Prize award. Our goal remains to provide local to global scale evidence for agrobiodiversity effects on environmental and social outcomes. Focused on positive changes in the midst of all the acute negatives right now. Plus artist documenting!

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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.

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“…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 🙏 www.policyalternatives.ca/news-researc...

Alternative federal budget 2026: Agriculture - CCPA

What the Canadian government should do on agriculture. Because true independence needs a new economic model.

policyalternatives.ca

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.

“In 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.

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

momentummag.com

A new paper out in Land Use Policy - “Land 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...

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 …

sciencedirect.com

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.

Paris before and after street transformationNew urban forest planted in front of Paris City HallA Paris “School Street” where cars are removed and people space/tree planting are added

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. 🔗 foodtank.com/news/2025/07...

The Food System’s Fossil Fuel Crisis

From fertilizer to packaging, fossil fuels are flooding the food system—this report shows what it will take to stop it.

foodtank.com

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...

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.

sei.org

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

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