Think about the process in which food is brought to your plate. It starts off as a seed, is nurtured then becomes a fully grown plant ready to be cropped. Some machines are required in order to harvest the vegetables. To be even able to be transferred to your local grocery store, it must first be shipped to a warehousing then shipped once again to the store. Throughout that process, there is large amounts of carbon being emitted. Going to the store, sometimes also requires driving, once again, emitting more carbon. Growing some of your own crops allows this process to be completely omitted. Having locally produced food is much more beneficial because there is less distance to cover, allowing for shorting travel distances. I have a food garden at home, including of avocados, cherries, pomegranates, figs, chives, green onions, mint, basil, lemons, oranges, and so much more.