What hydrogen leakage means for the climate

Catalyst · 9 Feb 2023 · 42m

What this episode covers

Thomas Koch Blank, senior principal at RMI, discusses new research on hydrogen leakage, explaining that while leaked hydrogen has a higher global warming potential than previously thought, it is still significantly lower than natural gas when normalized for energy content. He argues that the primary climate risk lies in the embodied emissions of hydrogen production (such as blue hydrogen or coal-powered electrolysis) rather than leakage itself. Blank emphasizes prioritizing high-impact industrial applications like steelmaking over lower-impact uses like home heating to maximize decarbonization benefits. The conversation covers the nuances of global warming potential metrics, leakage rates, and the importance of robust supply chain regulations to prevent fraud and ensure low-carbon production.

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