A gridded inventory of anthropogenic hydrogen emissions in Europe.

ABSTRACT: Hydrogen (H₂) is increasingly perceived as critical to the transition to a low-carbon economy, particularly in Europe, where ambitious climate targets require drastic reductions in greenhouse gas emissions. However, hydrogen emissions are not included in current reporting obligations, and their environmental impact remains underexplored. This study provides a first gridded inventory of anthropogenic hydrogen emissions across Europe, combining bottom-up estimates with spatially resolved activity data. In 2022, emissions were about 327 ktH₂/year (276-378 ktH₂/year). The largest sources are internal combustion engines in road transport (∼38%) and residential wood combustion (∼35%). By contrast, emissions from the hydrogen value chain are smaller, around 83 ktH

SUBMITTER: El Malki M 

PROVIDER: S-EPMC12718198 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature