Anyone can start composting regardless of the size of your garden or lack there of. Composting is the most effective zero waste tool in the tool belt. 16% of all methane emissions, are from organics that can’t decompose in landfills. Methane is 84 times more potent than carbon dioxide. (Source).
Imagine all the good we can do just by removing organics out of landfills! There is a misconception that compost is stinky, but actually, it will only smell if it has been mixed with non-organics such as plastic.