Comparative Analysis of Root Microbiomes of Rice Cultivars with High and Low Methane Emissions Reveals Differences in Abundance of Methanogenic Archaea and Putative Upstream Fermenters. [PDF]
, 2020 Rice cultivation worldwide accounts for ∼7 to 17% of global methane emissions. Methane cycling in rice paddies is a microbial process not only involving methane producers (methanogens) and methane metabolizers (methanotrophs) but also other microbial ...
Eason, Shane +7 more
core +1 more source
Moderate D/H Ratios in Methane Ice on Eris and Makemake as Evidence of Hydrothermal or Metamorphic Processes in Their Interiors: Geochemical Analysis [PDF]
, 2023 Dwarf planets Eris and Makemake have surfaces bearing methane ice of unknown origin. D/H ratios were recently determined from James Webb Space Telescope (JWST) observations of Eris and Makemake, giving us new clues to decipher the origin of methane. Here, we develop geochemical models to test if the origin of methane could be primordial, derived from ...
arxiv +1 more source
Methane formation and methane oxidation by methanogenic bacteria [PDF]
Journal of Bacteriology, 1979 Methanogenic bacteria were found to form and oxidize methane at the same time. As compared to the quantity of methane formed, the amount of methane simultaneously oxidized varied between 0.3 and 0.001%, depending on the strain used. All the nine tested strains of methane producers (Methanobacterium ruminantium, Methanobacterium strain M.o.H., M ...
Alexander J. B. Zehnder, Thomas D. Brock
openaire +3 more sources
The Case and Context for Atmospheric Methane as an Exoplanet Biosignature [PDF]
PNAS 119, 14, 1-10 (2022), 2022 Methane has been proposed as an exoplanet biosignature. Imminent observations with the James Webb Space Telescope may enable methane detections on potentially habitable exoplanets, so it is essential to assess in what planetary contexts methane is a compelling biosignature.
arxiv +1 more source
Widespread abiotic methane in chromitites [PDF]
, 2018 Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G. +8 more
core +1 more source
Research progress on coal mine laser methane sensor [PDF]
, 2019 This paper discusses the research progress of low-power technology of laser methane sensors for coal mine. On the basis of environment of coal mines, such as ultra-long-distance transmission and high stability, a series of studies have been carried out ...
Grattan, K. T. V. +10 more
core +1 more source
The Missing Link: Early Methane ("T") Dwarfs in the Sloan Digital Sky Survey [PDF]
Astrophys.J.536:L35-L38,2000, 2000 We report the discovery of three cool brown dwarfs which fall in the effective temperature gap between the latest L dwarfs currently known, with no methane absorption bands in the 1-2.5um range, and the previously known methane (T) dwarfs, whose spectra are dominated by methane and water.
arxiv +1 more source
Acoustic estimates of methane gas flux from the seabed in a 6000 km2 region in the Northern Gulf of Mexico [PDF]
, 2014 Seeps of free methane gas escaping the seabed can be found throughout the ocean basins. To understand the role of methane gas seeps in the global carbon cycle—including both gas added to the atmosphere and that which is dissolved and potentially oxidized
Dave Lovalvo +5 more
core +3 more sources
Methane Removal from Air: Challenges and Opportunities
Methane, 2023 Driven by increasing greenhouse gas (GHG) concentrations in the atmosphere, extreme weather events have become more frequent and their impacts on human lives have become more severe. Therefore, the need for short-term GHG mitigations is urgent. Recently,
Jin Wang, Qinghua Peter He
doaj +1 more source
Methane emissions from the 2015 Aliso Canyon blowout in Los Angeles, CA. [PDF]
, 2016 Single-point failures of natural gas infrastructure can hamper methane emission control strategies designed to mitigate climate change. The 23 October 2015 blowout of a well connected to the Aliso Canyon underground storage facility in California ...
Blake, DR +5 more
core +1 more source