In 2019, the energy sector is responsible for 78% of Singapore’s emissions , mostly from electricity (35%) and energy consumed by the industry sector (27%). Singapore does not produce oil or gas, but it serves as a major oil refining and petrochemical hub. Singapore’s CO₂ emissions are highly concentrated on Jurong island which serves as home to some of the biggest refineries and represents ~60% of the country’s emissions.,
Transport contributes 13% of total emissions, mainly from Singapore’s road vehicle fleet of diesel and petrol vehicles that contribute 95% of transport emissions.
Industrial processes emissions account for 22% of total emissions. Within this, the electronic industry is responsible for over 70% of industrial process emissions. Products used as substitutes for ozone depleting substances account for 17%, mainly related to emissions from the use of hydrofluorocarbons in solvent application.
Waste emissions represent only 1% of Singapore’s total emissions. This is because Singapore’s waste is incinerated in its waste-to-energy plants to reduce waste volumes and to create energy, and these emissions are included in the energy sector. Only the ash from these plants and non-incinerable waste is placed in landfill and therefore landfill emissions account for just a small share of emissions.
Agriculture emissions are negligible, as Singapore a city-state relies on imports for its food.