You might not be aware of it, but your diet choices and the food you consume have a more significant impact on the environment than you might think. According to the good people at Project Drawdown, the top two ways an individual can reduce their personal emissions footprint involve making decisions around their relationship with food.
And while November is World Vegan Month, you do not necessarily go fully vegan or even vegetarian to achieve positive climate outcomes. Even more, increasing plants in your diet will many other benefits, such as improving your health, saving you money, and improving how you feel. So let’s dive into how animal farming affects the climate.
Imagine a serene pasture with cows grazing peacefully. While this might be picturesque, it's also a place where methane, a powerful greenhouse gas, is being produced. Methane is generated during the digestive process of certain animals, especially ruminants like cows, sheep, and goats.
When ruminants eat, the food they consume enters a specialized stomach with a fermentation chamber. In this chamber, microorganisms break down the food. As a natural byproduct of this process, methane is produced and expelled through burps and, to a lesser extent, flatulence. This methane production in the digestive system of ruminants is known as enteric fermentation.
What is worse, most animals in industrial agriculture do not live the idyllic pastoral life of our imaginations and frequently now spend much or all of their lives in feed-lot systems. In these setups, the methane production is further increased through richer, more gas producing feed and through the handling and storage of animal waste.
Finally, there are the greenhouse gases associated with the production of feed for animals. For a single pound of meat to reach the dinner table, it takes between 4.5 pounds of feed for chickens and as much as 25 pounds for beef (source). In dairy, a cow will produce a little over six gallons of milk per day and consume about 100 pounds of feed, which leads to almost 16 pounds of feed per gallon. If you convert that milk into cheese, it takes about 20 pounds of feed, or 5 quarts of milk to make a pound of cheese. Ignoring the animal welfare components of the existing system, this is also just a highly inefficient system of energy and protein conversion for human wellbeing.
Now, let's get into why methane is such a concern when it comes to climate change. Methane is a greenhouse gas, meaning it has the ability to trap heat in the Earth's atmosphere. In fact, methane is much more efficient at this than the more famous greenhouse gas – carbon dioxide (CO2) – on a molecule-by-molecule basis. While it doesn't stay in the atmosphere as long as CO2, methane is approximately 27-30 times more effective at trapping heat over a 100-year period. This makes it a significant contributor to global warming.
Methane not only contributes to rising global temperatures but also leads to the formation of ground-level ozone, which can have adverse health effects. So, reducing methane emissions is not only a crucial step in mitigating climate change, but also is a key to improving public health.
Now that we've covered how animal farming produces methane and why it's a climate pollutant, let's focus on what you can do to reduce your own animal farming-related emissions footprint. Here are some practical steps you can take:
In conclusion, your food choices have a significant impact on the environment, particularly when it comes to methane emissions from animal farming. By reducing your consumption of meat and dairy, choosing leaner meats, supporting sustainable farming practices, and advocating for methane reduction technologies, you can play a vital role in reducing your animal farming-related emissions footprint. Remember, every small change counts, and collectively, we can make a big difference in the fight against climate change.
So, let's all work together to reduce our carbon hoofprint!
If you’re ready to get started, consider this guide from A Well Fed World.