Diet is the most powerful tool to fight climate change and operate safely within our planetary boundaries. With a few simple changes, we can cut emissions by over 50%.

The majority of food production emissions (over 80%) occur during the production phase — not transport or packaging.

of global greenhouse gas emissions come from food production
of fresh water use goes to agriculture
of deforestation is driven by agricultural expansion
of agricultural land is used for livestock
Food systems impact 6 of 9 planetary boundaries,
and we are exceeding the limits on all 6.
With more than 30% of emissions coming from food, the most impactful answers to the Paris Climate Accord are hidden in our refrigerators.
Favor plant-based over animal products
Choose seasonal over heated greenhouse vegetables
Select local over airfreighted goods

If the world went climate-friendly 3 days per week, the impact on greenhouse gas emissions would be the same as taking 16% of all cars off the streets.
Food is at the heart of the climate challenge but it's also the solution.
The critical warming threshold we must stay below.
Annual human emissions (2024) — depleting the budget.

Diet shifts could add 2+ years to our climate timeline.
By 2050, food production alone could consume up to 70% of the global carbon budget if current trends continue. As the global population grows and incomes rise, more people shift to meat-heavy diets — increasing emissions even further.
Population expected to hit 9–10 billion by 2050
Without changes, demand for high-impact foods will skyrocket, consuming up to 70% of the global carbon budget.
Climate-friendly diets are key to staying within planetary boundaries

Simple swaps can have massive impact. How much do you know?
Separating fact from fiction in sustainable food choices.
Myth
Local and seasonal food is always the most sustainable choice.
Fact
Transport is only ~6% of the footprint. How food is produced matters far more.
Example: Spanish outdoor tomatoes often beat Swiss greenhouse tomatoes.
Myth
Organic automatically means sustainable.
Fact
Organic supports soil health, but the product type still determines the footprint.
Example: Organic beef still has far higher emissions than any plant protein.
Myth
Eating sustainably is expensive.
Fact
Plant-based diets can reduce food costs by up to 30%.
Example: A chickpea curry costs less and has lower emissions than beef.
Explore Eaternity's solutions to help you cut carbon, inform better choices and reduce food waste.
Professional kitchen solutions for sustainable menu planning.
Product scoring and labeling for retailers and brands.
Predictive analytics for food waste reduction.
Explore detailed information on greenhouse gases, water systems, biodiversity, climate timelines, sustainable diets, circular economy, and measurement science.
Scientific research quantifying how dietary changes can extend our carbon budget and improve climate outcomes.
The Carbon Benefits Index (Searchinger et al., Nature 2018) measures how land-use changes contribute to global carbon storage capacity. The research reveals that diet choices have far greater climate implications than previously understood.
Key Finding: 125 Gigaton Budget Extension
Research from the Potsdam Institute for Climate Impact Research (Humpenöder et al., Science Advances, March 2024) found that transitioning to sustainable, flexitarian diets could extend our 1.5°C carbon budget from 500 to 625 gigatons — a 125 gigaton extension equivalent to adding 2+ years to our remaining climate timeline.
Project Drawdown ranks plant-rich diets as a "Highly Recommended" and "Emergency Brake" solution — one of the fastest, most cost-effective climate actions available, avoiding 1.4-2.8 Gt CO₂-eq per year while actually saving money.
Sources: Springmann et al. 2016 (PNAS) | Li et al. 2024 (Nature Climate Change) | Humpenöder et al. 2024 (Science Advances) | IPCC SRCCL Chapter 5 | Project Drawdown
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