Estimation of Greenhouse Gas Emissions from Household Waste in Banjarbaru City Using the IPCC Method

The research aims to estimate greenhouse gas emissions from household waste in Banjarbaru City using the IPCC Tier 2 method. The calculation was carried out with three scenarios, namely: scenario 1 (BAU), scenario 2 (existing conditions according to Jakstrada policy), and scenario 3 (mitigation with 3R optimization). The results show that in 2024, the BAU scenario produces emissions of 6.02 Gg CO₂-eq. In the existing scenario, emissions decreased to 5.78 Gg CO₂-eq (down 4.11%), while in the mitigation scenario, emissions decreased more significantly to 5.55 Gg CO₂-eq (down 7.81%). The mitigation scenario is the most effective approach in efforts to reduce GHG emissions in Banjarbaru City in 2024. Scenario 3 is the best scenario in reducing GHG emissions, because it integrates sustainable waste management strategies and supports the achievement of Indonesia Zero Waste Zero Emission in 2050.