More than you may realize. How the food we eat is grown or raised makes a huge difference to the amount of greenhouse gases produced. In addition to the use of fossil fuels to power farm machinery and provide the feedstock for farm chemicals such as herbicides, pesticides and fertilizers, the numbers of animals raised, and the type of production system used also affects the amount of damaging CO2, nitrous oxide and methane formed as a result of meat and livestock production.
Agriculture accounts for a fifth of global greenhouse gas emissions, ahead of even the transportation sector. In other words, what you choose to eat can potentially have a greater impact on climate change than what you choose to drive, and choosing to eat meat might be more damaging for the environment than trading your compact for an SUV.
You can reduce climate change when deciding what to eat...
Every time you eat meat you make choices that affect climate change. The way your food is raised, slaughtered, and the miles it travels will have an impact on the environment and climate change.