Methane is the second strongest anthropogenic greenhouse gas and its atmospheric burden has more than doubled since 1850. Methane concentrations stabilized in the early …
Microbial life inhabits deeply buried marine sediments, but the extent of this vast ecosystem remains poorly constrained. Here we provide evidence for the existence of microbial …
Ruminant production systems are important contributors to anthropogenic methane (CH 4) emissions, but there are large uncertainties in national and global livestock CH 4 …
Methyl-coenzyme M reductase (MCR) catalyzes the methane-forming step in methanogenic archaea. The active enzyme harbors the nickel (I) hydrocorphin coenzyme F-430 as a …
We apply a recently developed measurement technique for methane (CH4) isotopologues (isotopic variants of CH4—13CH4, 12CH3D, 13CH3D, and 12CH2D2) to identify …
Sources of methane to sedimentary environments are commonly identified and quantified using the stable isotopic compositions of methane. The methane “clumped-isotope …
We report measurements of resolved 12 CH 2 D 2 and 13 CH 3 D at natural abundances in a variety of methane gases produced naturally and in the laboratory. The ability to resolve …