Modern food production practices produce harmful environmental effects. The highly mechanized production system uses about 12 to 14 per cent of the total energy use. According to a 2016 review in PLoS One, agriculture practices, especially the growing meat consumption, are responsible for about 30 per cent of greenhouse gas emissions where methane from animals is a primary contributor. In addition, the same report indicates about 70 per cent of the world’s water use is attributed to agriculture production.
What can you do? Here are suggestions from the Tufts University Health & Nutrition Letter:
Since plant-based diets are also associated with positive health effects, reducing personal effects on the planet by food choice can also improve the environment we all share.
The Impacts of Dietary Change on Greenhouse Gas Emissions, Land Use, Water Use, and Health: A Systematic Review, by Lukasz Aleksandrowicz, Rosemary Green, Edward J. M. Joy, Pete Smith, and Andy Haines. 11.3.2016. PLoS Journal. (see: https://doi.org/10.1371/journal.pone.0165797)