Transportation â¢ More use of public transportation â 30 percent modal share in urban areas by 2050 â¢ Moderate penetration of electric vehicles â 70 percent for motorcycles and 40 percent for cars and urban buses by 2050 â¢ Increased fuel efficiency for internal combustion engine vehicles â¢ Rail for freight and passengers â¢ CNG penetration of 80 percent for interregional buses and 80 percent for trucks until 2050 Industrial processes and product use â¢ Clinker substitution in cement production â¢ Carbon capture and storage for cement kilns â¢ Use of recycled aggregate concrete â¢ Increasing use of refrigerants with low global warming potential â¢ Regular inspection of refrigeration and air-conditioning equipment and recovery of spent refrigerants Waste â¢ Reducing open burning by expanding waste collection coverage to 85 percent in 2050 â¢ Implementing a reduce, reuse, and recycle strategy â¢ Landfill gas management â¢ Organic composting â¢ Anaerobic digestion and wastewater treatment Figure 3: Summary of key mitigation actions by sectorCambodiaâs Long-Term Strategy for Carbon Neutrality 6 1. Introduction and Background 1.1. Global and local context of climate change Science has made it clear that the Earthâs climate is changing, in every region and across the global climate system.