Local Food Cuts Emissions for Veggies, Says New Research

Your farmers market habit is actually making a difference for the planet, according to new research on food system emissions.

Scientists at the University of Sydney found that transport makes up about 19% of food system emissions across the entire supply chain. For fresh fruits and vegetables specifically, those transportation emissions can add up fast, especially when produce travels long distances in refrigerated trucks or planes.

Associate Professor Mengyu Li explains that nearly a third of global greenhouse gas emissions connect to our food system through farming, processing, packaging, transport and waste. The good news? For some foods, we can make a real dent by choosing local options.

The impact varies by what you eat. Red meat emissions come mostly from the animals themselves and land clearing, so buying local beef doesn't help much. But fresh produce is a different story entirely.

"For fresh fruit and vegetables, buying local, seasonal greens is a useful step," Li says. The benefits extend beyond emissions to include healthier eating, stronger communities and greater food self-sufficiency.

FoodSwitch analyzed environmental data on 25,000 supermarket products and found similar patterns. Managing Director Fraser Taylor confirms that food miles still count, particularly for fresh produce that requires refrigeration during long journeys.

In Melbourne, Ceres Fair Food is making local shopping easier by connecting customers directly with small farms and market gardens around the city. Each delivery van serves 40 to 50 households, cutting down on individual car trips to stores.

Chris Ennis from Ceres says supporting local growers helps keep farmers in business as rising land prices and cheaper imports make farming harder. "When you support local, you know where your food comes from and you can have confidence that the farmer has looked after their land," he explains.

The Ripple Effect

The shift toward local food creates wins across the board. Farmers get fair prices and stay in business. Communities build connections to their food sources. Transportation emissions drop as supply chains shrink. And customers get fresher produce with less packaging waste.

Dr. Kimberley Reis, who researches local food systems at Griffith University, notes that Australian food often travels vast distances to reach supermarket shelves, with freight costs passed to shoppers. Shorter supply chains mean fresher food at lower environmental and economic costs.

The United Nations climate action guide now recommends shopping local and organic as part of reducing food-related emissions, alongside eating more plants and cutting waste.

Supporting your neighborhood farmers market or local food delivery service turns out to be one of the simplest climate actions with the most immediate community benefits.