The ISWM system in Muangklang has achieved a considerablereduction in GHG emissions by utilising only 30% of collected wastefor resource recovery. However, further improvements can be made in order to enhance the climate co-benefits from the ISWM. Promotion of the “zero GHG emissions” concept via an ISWM approach would enhance the eagerness of Muangklang in taking the necessary actions to attain the target by improving the conditions of the existing integrated systems. Additionally, upgrading the conditions of the existing ISWM would bring other rewards as well such as acceptance and appreciation at the national and local levels, earning adequate financial benefits via resource recovery and creation of more employment opportunities. A considerable fraction of recyclable waste as well as organic waste still ends up at the landfill (71% of total recyclables and 65% of total organic waste) as a mixed waste stream and the Muangklang Municipality is making an effort for further improvement of the recovery rate prior to landfilling. By improving the recycling rate and organic waste utilisation rates further, the entire integrated system would improve towards “net zero GHG emissions”. In LCA perspective, improvement of the recycling rate has the highest potential to reduce GHG emissions; recycling alone has contributed to 92% of the total GHG savings from the current ISWM system. Successful further expansion of ISWM methods targeting “net zero GHG emissions” could shift the entire waste management from “being part of the problem” to “being part of the solution” in sustainable climate-friendly development. It should be noted that this study is based on location-specific data in Muangklang Municipality and that the results can be somewhat different for another location. However, based on our experience with waste management practices across Asia, we see no reason that our conclusions concerning the climate benefits of ISWM would not be generally valid. Furthermore, the climate cobenefits assessed in this study is one of several outcomes that will result from ISWM. There are various other socio-economic cobenefits that can be achieved by moving towards integrated systems. Further studies are needed to comprehensively assess the overall social-economic and environmental aspects of ISWM systems, thereby enabling sound evidence-based policy making.