This study was conducted in response to the increasingly critical issue of climate change driven by global warming and the rising concentration of greenhouse gases, particularly methane (CH₄), in the atmosphere. The waste sector is recognized as one of the major contributors to methane emissions, especially through the anaerobic decomposition of organic waste in landfills. To address this issue, the Indonesian Ministry of Environment and Forestry established the Climate Village Program (ProKlim) as a community-based climate change mitigation initiative. However, studies quantifying greenhouse gas emission reductions resulting from waste management activities in ProKlim areas remain limited. Therefore, this research aims to estimate the reduction of greenhouse gas emissions generated through waste management practices in ProKlim RW 07, Lesanpuro Village. Waste volume and composition sampling were conducted using purposive sampling techniques based on SNI 19-3964-1995 guidelines. Greenhouse gas emissions were calculated using the 2006 IPCC Guidelines with the First Order Decay (FOD) Tier 2 method. The results indicate that the total waste generation in RW 07 reached 563.174 kg/day, with a waste generation rate of 0.38 kg/person/day. Following the implementation of ProKlim, 73.7 kg/day of waste was successfully managed, while 489.5 kg/day remained unmanaged. Waste management activities in ProKlim RW 07 contributed to a reduction of methane emissions from landfills by approximately 0.19 tons CH₄/year.