Methane emissions from the Nord Stream subsea pipeline leaks.

ABSTRACT: The amount of methane released to the atmosphere from the Nord Stream subsea pipeline leaks remains uncertain, as reflected in a wide range of estimates^1-18. A lack of information regarding the temporal variation in atmospheric emissions has made it challenging to reconcile pipeline volumetric (bottom-up) estimates^1-8 with measurement-based (top-down) estimates^8-18. Here we simulate pipeline rupture emission rates and integrate these with methane dissolution and sea-surface outgassing estimates^9,10 to model the evolution of atmospheric emissions from the leaks. We verify our modelled atmospheric emissions by comparing them with top-down point-in-time emission-rate estimates and cumulative emission estimates derived from airborne¹¹, sat

SUBMITTER: Harris SJ 

PROVIDER: S-EPMC11779632 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature