Food Miles—the distance food travels from production to consumption—became a proxy for environmental impact and a rallying cry for locavorism. The hashtag championed eating within 100 miles, supporting local farmers, and reducing transportation emissions. Farmers’ markets, farm-to-table restaurants, and Community Supported Agriculture (CSA) boxes flourished. However, by 2020, research revealed food miles’ climate impact was more complex—how food is grown matters more than how far it travels.
The 100-Mile Diet
Alisa Smith and J.B. MacKinnon’s 2007 book “The 100-Mile Diet” (following their year eating only food from within 100 miles) inspired a movement. The hashtag documented challenges: no coffee, chocolate, rice, or bananas; seasonal eating meant preserving/canning; and some regions (deserts, cities) couldn’t sustain themselves. But participants discovered food diversity, connected with farmers, and appreciated seasonality. Farmers’ markets became social spaces, not just shopping—community building through food.
The Lifecycle Complexity
Christopher Weber and Scott Matthews’ 2008 study shocked locavores: transportation accounts for only 11% of food’s carbon footprint—production (83%) dominates. Lamb from New Zealand (efficient, grass-fed) had lower emissions than UK lamb (grain-fed, energy-intensive). Tomatoes grown locally in heated greenhouses had higher footprints than field-grown tomatoes shipped from Spain. Beef’s emissions dwarfed transportation impacts. The hashtag wrestled with nuance: local isn’t automatically sustainable, and sometimes airfreighted Kenyan beans support livelihoods with minimal climate impact.
Beyond Carbon: Resilience and Economics
Locavorism wasn’t just about carbon. Local food systems built resilience—COVID supply chain disruptions proved this when local farms continued serving communities while industrial food chains faltered. Keeping food dollars local multiplied economic benefits (local multiplier effect). Direct farmer relationships increased transparency about pesticides, labor practices, and biodiversity. The hashtag evolved from simplistic “local = better” to recognizing multiple values: carbon, economy, resilience, justice, taste.
The Elitist Critique
Critics called locavorism a privilege. Farmers’ markets cost more than supermarkets; CSA boxes require upfront payments; and “farm-to-table” restaurants charge premiums. Food deserts lack farmers’ markets. Importing food can support developing country farmers—shouldn’t wealthy nations buy fair-trade coffee from Kenya? The hashtag’s comment debates exposed class and global equity tensions. Locavorism’s best case: wealthy consumers supporting local agriculture while not demonizing imports that sustain Global South economies.
Sources: Weber & Matthews (2008) Environmental Science & Technology study, USDA local food data, American Farmland Trust research, The Guardian food systems analysis, Our World in Data food carbon footprints