Sentences with phrase «methane oxidation»
Methane oxidation refers to the process by which methane gas is chemically transformed into other substances, usually carbon dioxide and water. It involves the breakdown and conversion of methane molecules to different compounds through a chemical reaction. Full definition
The new study shows that if not for the anaerobic methane oxidation process, freshwater environments would account for an even greater portion of the global methane budget.
sciencedaily.com
In the longer - term, a crucial question that remains is whether methane oxidation in natural environments can match potentially increased methane production in response to predicted climate change.
Methane distribution in the water column: Once released into the water column, methane is distributed by currents and aerobic methane oxidation by bacteria...
A research team combining the expertise of Moniek Tromp (UvA / HIMS), Evgeny Pidko and Emiel Hensen (Eindhoven University of Technology), Maricruz Sanchez - Sanchez (Technische Universität München) as well as Johannes Lercher (Technische Universität München and Pacific Northwest National Laboratory) is currently focusing on a bio-inspired method enabling such partial methane oxidation.
«A radical approach to methane oxidation into methanol: Researchers convert methane to valuable chemicals using clean, low - temperature radical reaction.»
We hypothesize that top - down forcing, exerted by this metazoan fauna, shifts the dominant domain responsible for methane oxidation off New Zealand's coast leading to increased emission of a green house gas.
This is in sharp contrast to the current paradigm of archaeal methane oxidation being the dominant sink of methane in marine sediments.
The magnitude and timing of this emission scenario is unconstrained due to large uncertainties in estimating future rates of cryosphere degradation, hydrocarbon reservoir response, and potential methane oxidation.
For example, methane and carbon monoxide (CO) are oxidized to give carbon dioxide (and methane oxidation also produces water vapor, as discussed later).
Valentine, D.L., D.C. Blanton, W.S. Reeburgh, and M. Kastner, Water column methane oxidation adjacent to an area of active hydrate dissociation, Eel River Basin, Geochimica Et Cosmochimica Acta, 65 (16), 2633 - 2640, 2001.
While anaerobic methane oxidation in freshwaters has been gathering scientific attention, the environmental relevance of this process was unknown.
Methane oxidation by bacteria, which had been 60,000 times higher than normal to the southwest of the well, fell to 300 times above background, according to her unpublished data.
Bio-inspired catalyst A research team combining the expertise of Moniek Tromp (UvA / HIMS), Evgeny Pidko and Emiel Hensen (Eindhoven University of Technology), Maricruz Sanches - Sanches (Technische Universität München) as well as Johannes Lercher (Technische Universität München and Pacific Northwest National Laboratory) is currently focusing on a bio-inspired method enabling such partial methane oxidation.
Kartal adds, «Based on the genetic blueprint of these microorganisms, we hypothesized that they could also convert particulate iron coupled to methane oxidation.
«These findings fill one of the remaining gaps in our understanding of anaerobic methane oxidation.
Researchers at Radboud University and the Max Planck Institute for Marine Microbiology in Bremen discovered a microorganism that couples the reduction of iron to methane oxidation, and could thus be relevant in controlling greenhouse gas emissions worldwide.
The study, published in Nature Communications by Samantha Joye and colleagues, describes how high rates of anaerobic methane oxidation, a process once considered insignificant in these environments, substantially reduce atmospheric emissions of methane from freshwater wetlands.
Anaerobic methane oxidation was discovered in 1974 and is thought to account for up to 90 % of methane release from melted clathrate in ocean sediments.
Ozone values are modeled changes relative to 1980 from simulations with greenhouse gas (GHG) increases alone (blue), GHG increases and the additional water vapor produced by methane oxidation (red), and GHG increases with water vapor from both methane oxidation and increased transport from the troposphere (green).
Modeled values are taken from runs with greenhouse gas (ghg) increases, but fixed water and ozone (G); Ozone, with ghg and chlorine changes, calculated ozone, and fixed water vapor (G + O); MethOx, with ghg and chlorine changes, calculated ozone, and water vapor increases due to methane oxidation (G + O + M); and Water, with ghg and chlorine changes, calculated ozone, and increased water from methane oxidation and transport (G + O + M + W).