Avoiding meat and dairy is ‘single biggest way’ to reduce your impact on Earth

https://www.theguardian.com/environment/2018/may/31/avoiding...

The climate benefits of veganism and vegetarianism

https://www.bbc.com/future/article/20220429-the-climate-bene...

https://ychef.files.bbci.co.uk/1600x900/p0c41hws.webp

Estimating the environmental impacts of 57,000 food products

https://www.pnas.org/doi/full/10.1073/pnas.2120584119

Sustainable eating is cheaper and healthier - Oxford study

https://www.ox.ac.uk/news/2021-11-11-sustainable-eating-chea...

Why the food system is the next frontier in climate action

Virtually all paths to a net-zero-emissions food system rely on consumers in high-income countries shifting to a more plant-forward diet, according to a recent study.

https://yaleclimateconnections.org/2023/04/why-the-food-syst...

How can the calories out be more than the calories in?

Or are you suggesting people don't get all the calories they eat from plans? I don't think this is true.