Criar e comer animais é dos principais contribuidores para a crise climática global, responsável por cerca de 20% das emissões globais de gases de efeito estufa. [1]


1 Xu, X., P. Sharma, S. Shu, et al. (2021): Global greenhouse gas emissions from animal-based foods are twice those of plant-based foods. Nature Food 2(9), 724–732. doi:10.1038/s43016-021-00358-x

Further Info

The livestock sector emits 7.1 – 8.1 GtCO2-eq per year. Compared to global emissions of 49 – 52 GtCO2-eq, this represents 14.5 to 16% of global emissions.


Transitioning toward plant-based diets((footnote text)) has the potential to reduce one’s individual food related emissions by up to 50%.


A pecuária e o consumo de animais causam tremendos danos às nossas florestas. 80% da desflorestação no mundo está relacionada com o nosso actual sistema alimentar, e quase 70% de terras desmatadas na Amazónia é usada para pastoreio de gado. [1] [2]


1 Fresán, U., & Sabaté, J. (2019). Vegetarian Diets: Planetary Health and Its Alignment with Human Health. Advances in nutrition (Bethesda, Md.), 10(Suppl_4), S380–S388. https://doi.org/10.1093/advances/nmz019
2 Cerri, C.E.P., C.C. Cerri, S.M.F. Maia, M.R. Cherubin, B.J. Feigl & R. Lal (2018): Reducing Amazon Deforestation through Agricultural Intensification in the Cerrado for Advancing Food Security and Mitigating Climate Change. Sustainability. 10, p.98

Further Info

According to the IPCC (2019) and Crippa et al. (2021) The food system emits up to 18 – 19.1 GtCO2-eq. (add comparison to something). If current trends continue, emissions from the global food system alone would make it impossible to limit warming to 1.5°C and difficult even to realize the 2°C target, even if fossil fuel emissions were immediately halted.


Transitioning toward plant-based diets has the potential to mitigate up to 8GtCO2-eq per year by 2050. In a recent analysis, vegan/plant based scenarios even showed high negative emissions due to vegetation regrowth on land previously used for concentrated livestock grazing. – (comparison)


Mudar para uma alimentação de base vegetal pode reduzir em 50% as emissões relacionadas com a alimentação.[1][2][3][4][5]


1 Wissenschaftlicher Beirat Agrarpolitik, Ernährung und gesundheitlicher Verbraucherschutz & Wissenschaftlicher Beirat Waldpolitik beim BMEL (2016): Klimaschutz in der Land- und Forstwirtschaft sowie den nachgelagerten Bereichen Ernährung und Holzverwendung. Berlin.
2 Scarborough, P., P. N. Appleby, A. Mizdrak, et al. (2014): Dietary greenhouse gas emissions of meat-eaters, fish-eaters, vegetarians and vegans in the UK. Climatic Change 125(2), 179–192.
3 Abejón, R., L. Batlle-Bayer, J. Laso, et al. (2020): Multi-Objective Optimization of Nutritional, Environmental and Economic Aspects of Diets Applied to the Spanish Context. Foods 9(11), Multidisciplinary Digital Publishing Institute, 1677.
4 Hallström, E., A. Carlsson-Kanyama & P. Börjesson (2015): Environmental impact of dietary change: a systematic review. Journal of Cleaner Production 91 1–11
5 Bruno, M., M. Thomsen, F. M. Pulselli, et al. (2019): The carbon footprint of Danish diets. Climatic Change 156(4), 489–507. doi:10.1007/s10584-019-02508-4

Further Info

Our dietary choices are a major driver of global deforestation. The animals needed to produce meat, milk and eggs need large quantities of land, be it for creating pastures for cattle farming or growing fodder crops.


Diets with no more than 15% of calories from livestock – half of what is currently consumed in Europe or Northern America – could reduce deforestation by up to 55%. Further deforestation would not be necessary to feed 10 billion people by 2050, when transitioning towards plant-based diets.

As alterações climáticas não têm de ser avassaladoras. Ao mudar para uma alimentação de base vegetal, pode AJUDAR com o seu garfo, hoje mesmo, no combate à crise climática. Entre em acção, AGORA!

Aceite o desafio "Diet Change Not Climate Change"

Comprometo-me a reduzir a minha pegada de carbono através da minha alimentação, e a inspirar outros a agirem nesse sentido.

Pledge consent(Obrigatório)
Nota: pode cancelar o seu consentimento no futuro a qualquer altura, enviando um email para desafiomesvegetarian[email protected] ou para os detalhes de contacto fornecidos na nossa Política de Protecção de Dados.

Information Hub

Choose what interests you most:

Post X

Webinar X

Sort by


Watch and promote Eating ‘ Our Way To Extinction’, narrated by Kate Winslet

Featuring commentary from some of the world’s leading scientists and best-known personalities, Eating Our Way To Extinction is a powerful documentary that invites you on an eye-opening journey into our food system…


[email protected] – a youth-led initiative for climate-friendly catering at COP26

[email protected] is a movement led by a collection of young people from across the globe who believe that climate-friendly negotiations must take place over climate-friendly meals. The campaign calls for the UN to serve…


COP26 petition to save ourselves and the planet

Scientific consensus shows that animal agriculture is responsible for at least 14.5% of global greenhouse gas emissions and is a leading cause of environmental degradation, from biodiversity loss to deforestation. Which…

Planet Earth


Heura Foods launches petition demanding world leaders to support a plant-based diet to help save our planet

Today, Heura Foods launched a petition demanding world leaders to support a plant-based diet to help save our planet. Bernat Ananos Martinez, Co-founder of Heura Foods, comments on LinkedIn.


What comes next? Sign the Plant Based Treaty

Guest Blog by Anita Krajnc, Global Campaign Coordinator for Plant Based Treaty We are in a planetary emergency. Fossil fuels and animal agriculture are key drivers of the climate crisis. The animal agriculture…


This is why I took the Diet Change Not Climate Change pledge – and why you should too!

Juliette Tronchon is 25 years old, was born in France, and currently lives in Berlin. When we chatted to her over Zoom recently, she spoke about why she took the Diet Change Not Climate Change pledge. Hi Juliette…


Climate policy in easy language

The Paris Agreement is an important international agreement that holds countries accountable for achieving their climate targets. However plant-rich diets haven’t yet been recognised by the international community…

Organizações que apoiam esta iniciativa

Se desejar acrescentar a sua organização ao movimento, por favor contacte-nos