The global hydrogen combustion engine market size was valued at USD 17.32 billion in 2024 and is projected to grow from USD 19.01 billion in 2025 to USD 36.98 billion by 2032, exhibiting a CAGR of 9.92% during the forecast period. This growth is driven by rising concerns over carbon emissions, government decarbonization policies, and increasing R&D investments in hydrogen-based...