Hydrogen Green Metrics Report WEEKLY HIGHLIGHTS - Week 2
Series—Week Two
In today’s second installment of highlights from the SEP report, we explore the sinks for hydrogen released into the atmosphere.
Hydrogen is an indirect greenhouse gas with a GWP100 of 12. Atmospheric concentration is relatively low and annual hydrogen production-related leaks are a small fraction of total hydrogen sources. Growth in clean hydrogen production as part of the energy transition to decarbonize many hard-to-abate industries necessitates low leak rates. The SEP report Hydrogen Green Metrics investigates this and other environmental features of hydrogen production, transportation, and use.
The primary sink for atmospheric hydrogen is soil, which accounts for approximately 70% of hydrogen removal, with the remainder occurring in the atmosphere. While more research is needed to fully understand this process, it is known that factors such as soil temperature, moisture, type, carbon content, and the surrounding ecosystem influence hydrogen uptake.
Both methane and hydrogen react with hydroxyl radicals (OH) in the atmosphere. Increased hydrogen emissions or leaks can deplete OH levels, leading to a longer atmospheric lifetime for methane.
For more information, the report may be accessed here: https://www.saoradh.com/marketplace-new
—SEP Hydrogen Innovation Report, Chapter 2: Green Metrics, January 2025
About Saoradh Enterprise Partners
Saoradh Enterprise Partners (SEP) is a cleantech venture capital and research firm based in Boulder, Colorado. SEP partners with innovators, entrepreneurs, and corporations to develop cleantech solutions at the magical intersection of science (what’s possible), finance (what’s bankable), industry (what’s needed), and planet (what matters). Learn more at www.saoradh.com.
Media contact:
Jackson Levin, Business Development & Communications, Hydrogen Data Consortium
+1 (303) 448-2115 (office main number)
+1 (414) 405-3743 (cell)