Food waste in Canada is a big problem, with 40% of food being thrown away. This creates a lot of greenhouse gases in landfills. Composting is a good way to reduce this waste and its impact on the environment. A study found that composting food waste in Canada reduced the carbon footprint by 18% in 2014 and 20% in 2016. Compared to other countries, Canada's composting efforts are very effective in reducing greenhouse gas emissions.