The global landfill gas market is valued at USD 1.8 billion in 2026 and is projected to reach USD 4.0 billion by 2036, expanding at a CAGR of 8.3% from 2026 to 2036. The market reached USD 1.7 billion in 2025 as landfill owners upgraded gas wells and power assets. Growth is being supported by methane capture requirements, RNG and biomethane offtake, existing power-generation infrastructure, and...