A grow box is a small container that can be used to create a large quantity of food, the people over at Eat Drink Better have guides to create your own grow box.
With a small amount of space, a nominal investment in supplies, and a little bit of sunlight, you too can have delicious, fresh produce at your fingertips in the middle of the city, the country, or even (gasp!) the ‘burbs! Oh, and you’re going to be pulling CO2 out of the air and fixing it in a very delicious form.
If you want to affect global climate change, why not do it through fresh, homegrown food? Oh, and if you live in USDA plant hardiness zones that have double digits, you might be able to do this until November or later. Lucky!