Global methane emissions from rivers and streams.

ABSTRACT: Methane (CH₄) is a potent greenhouse gas and its concentrations have tripled in the atmosphere since the industrial revolution. There is evidence that global warming has increased CH₄ emissions from freshwater ecosystems^1,2, providing positive feedback to the global climate. Yet for rivers and streams, the controls and the magnitude of CH₄ emissions remain highly uncertain^3,4. Here we report a spatially explicit global estimate of CH₄ emissions from running waters, accounting for 27.9 (16.7-39.7) Tg CH₄ per year and roughly equal in magnitude to those of other freshwater systems^5,6. Riverine CH₄ emissions are not strongly temperature dependent, with low average activation energy (E_M

SUBMITTER: Rocher-Ros G 

PROVIDER: S-EPMC10511311 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature