According to the Danish Ministry of Environment, Danes discarded 983,000 tonnes of yard debris in 2019. Garden debris from companies and parks is included in this statistic. The garden waste absorbs CO2 from the atmosphere. When converted, this quantity corresponds to around 1.2 million tonnes of bound CO2. If Danes left their garden trash in their yards and deducted the amount of garden waste utilized for bioenergy, Denmark's 70 percent reduction target for 2030 might be met by nearly half of one percent. CO2 is the most abundant gas in leaves. Leaves are little CO2 reservoirs that receive CO2 from the air and release some of it during decomposition. Leaves decay in 3-6 months, until half of them remain (their half-life), whereas twigs and branches require 2-5 years. Tree trunks deteriorate over a period of 10-20 years.