> Composting results in the emission of greenhouse gases too - most notable methane which is a 25x stronger GHG than CO2. Methane is produced when 'bio' waste

> Composting results in the emission of greenhouse gases too - most notable methane which is a 25x stronger GHG than CO2. Methane is produced when 'bio' waste breaks down in anearobic environment. Composting is an aerobic process. So yeah, CO2 produced there. But significantly less harmful than what happens to the same stuff in a landfill. Although in that case, methane may be captured. Of course never 100%. Perhaps far from it.