Study highlights economic and environmental efficiency of Indigenous harvesting in the Canadian Arctic communities.

By Max Planck Institute for Evolutionary Anthropology

Emphasizing local food production over imported substitutes can lead to significant cost and carbon savings, according to data from the Inuvialuit Settlement Region in the Canadian Arctic.

The research, conducted by the Max Planck Institute for Evolutionary Anthropology and the Inuvialuit Regional Corporation, shows potential annual savings of more than 3.1 million Canadian dollars and roughly half the carbon emissions when locally harvested food is used instead of imported food. The study underscores the importance of climate change policies that take local food systems into account. Weakening of these local systems could lead to increased emissions and jeopardize the health and food security of remote communities.

The paper is published in the journal Proceedings of the National Academy of Sciences (PNAS).

Local foods are critical to the food security and health of Indigenous peoples around the world, but local “informal” economies are often invisible in official economic statistics. Consequently, these economies may be overlooked in the policies designed to combat climate change.

For instance, Indigenous communities in the North American Arctic are characterized by mixed economies featuring hunting, fishing, gathering and trapping activities, alongside the formal wage economy. The region is also undergoing a rapid transformation due to social, economic and climatic changes. In Canada, the introduction of carbon taxation has implications for the cost of fuel utilized in local food harvesting.

arctic charPeterColllings
Arctic Char drying to make piffi near Uluhaktok, summer 2007. Locally harvested foods like Arctic char are critical for Inuit food security Credit: Peter Collings

As a first step in understanding the sensitivity of Arctic food systems to carbon tax policy, researchers from the Max Planck Institute for Evolutionary Anthropology, in collaboration with the Innovation, Inuvialuit Science, and Climate Change Division of the Inuvialuit Regional Corporation, attempted to estimate the economic and environmental importance of local food production in the Inuvialuit Settlement Region in the western Canadian Arctic. To do this, the authors utilized data from a regional study of harvesting conducted in 2018, aiming to calculate the total edible weight of food produced by Inuit harvesters within a one-year timeframe.

Reducing CO2 emissions requires locally-adapted policy

The authors then calculated what it would cost to replace these foods with market substitutes, like beef, pork, chicken or farmed fish. They then gathered data from agriculture and transport science to estimate the carbon emissions associated with producing and shipping market substitutes to Arctic communities. Finally, using data from a community-based study of Inuit harvesting in one community in the Inuvialuit Settlement Region (Ulukhaktok), the research team was able to estimate the amount of gasoline used per kilogram of food harvested, and used this information to infer the total amount of gasoline used in local food production in the region.

The resulting estimates suggest that, under plausible scenarios, replacing locally-harvested foods in the Inuvialuit Settlement Region with imported market substitutes would cost over 3.1 million Canadian dollars per year and emit over 1,000 tonnes of CO2-equivalent emissions per year. In contrast, gasoline inputs to local harvesting cost approximately 295,000 Canadian dollars and result in 317 to 496 tonnes of emissions, less than half of what would be emitted by market substitutes.

pnas.2317686121fig01 res
Locations of the six study communities are plotted in red. The ISR is highlighted in dark pink. The light pink region shows other regions of Inuit Nunangat in Canada. Credit: PNAS | DOI: 10.1073/pnas.2317686121

“Our findings illustrate how local food harvesting, even when reliant on fossil fuels – as is the case in Canadian Arctic communities – are more economically-efficient and less carbon intensive than industrial food production“, says first author Elspeth Ready, a researcher at the Max Planck Institute for Evolutionary Anthropology. “Local food harvesting also reduces reliance on supply chains that are vulnerable to climate change.“

The results indicate that climate change policies that fail to account for local food production may undermine emission targets and adversely impact food security and health in remote communities, which face heightened economic and logistical constraints relative to more populated regions.

This finding is significant because it illustrates that while climate change is a global crisis, successfully reducing emissions requires locally-adapted policy. The statistical modelling approach developed in the paper lays a foundation for similar studies in other regions.

More information: Elspeth Ready, Cody T. Ross, Bret Beheim and Jenn Parrott, ‘Indigenous food production in a carbon economy’, Proceedings of the National Academy of Sciences – PNAS (121 32; 2024); DOI: 10.1073/pnas.2317686121 | MPG Press Release/Material. Featured image: Hunting equipment including boats, all-terrain vehicles, snowmobiles and sleds along the shoreline in Ulukhaktok, October 2019 Credit: Elspeth Ready

Image: produced using the Urban Atlas 2018 dataset from the Copernicus Land Monitoring Service, shows Dublin’s urban fabric with high thematic accuracy
Image of the day: Dublin’s urban landscape captured for World Cities DayNews

Image of the day: Dublin’s urban landscape captured for World Cities Day

On World Cities Day, 31 October 2025, attention turns to Dublin, Ireland’s capital, where rapid urban growth intersects with historic streets, cultural hubs, and natural…
Muser NewsDeskMuser NewsDeskOctober 31, 2025 Full article
Image: Polar bear at sunset on ice
Climate Science Digest: February 22, 2026Science

Climate Science Digest: February 22, 2026

Explore the latest insights from top science journals in the Muser Press roundup (February 22, 2026), featuring impactful research on climate change challenges. In brief:…
Muser NewsDeskMuser NewsDeskFebruary 22, 2026 Full article
Image: Tabular iceberg, Antarctica
Deep ocean temperatures challenge past views of the Antarctic ice sheetClimate

Deep ocean temperatures challenge past views of the Antarctic ice sheet

New temperature reconstructions suggest the Antarctic ice sheet remained more stable during the Oligocene than long assumed Summary: Understanding past Antarctic ice sheet behaviour relies…
SourceSourceJanuary 8, 2026 Full article