Uncertainty around demand and incentives coupled with cost pressures are weighing on the global adoption of low-carbon hydrogen despite an uptick in final investment decisions in the past year, the International Energy Agency (IEA) said in a new report on Wednesday. World demand for hydrogen rose by 2.5% to 97 million tons in 2023, with demand concentrated in refining and chemicals, and mostly covered by hydrogen produced from unabated fossil fuels, the IEA said in its annual Global Hydrogen Review 2024. “As in previous years, low-emissions…