We have to choose between nutrition or protecting the environment

Red meat, dairy and pork emit more than 70% of greenhouse gases
from agriculture, while consisting of just 10% of calorie intake. Not only
does the production of these foods harm the environment, but here in
Ireland, for example, the amount of meat we are eating is harmful to our
health.
Increasing our intake of grains, starches, beans and nuts, are beneficial
to both our health and the environment.
Research collected in the UN’s flagship Food Security and Nutrition in
the World Report leaves little room for disagreement.
A global switch to healthier diets would:
‹ be more cost-effective (preventing the health costs of
malnutrition),
‹ reduce world hunger, and
‹ cut the cost diet-related greenhouse emissions by up to 75%