Concept
Methane
Related publications (194)
Evaluation of biospheric components in earth system models using modern and palaeo-observations: The state-of-the-art
We investigate for the first time the loss and alteration of past atmospheric information from air trapping mechanisms under low-accumulation conditions through continuous CH4 (and CO) measurements. Methane concentration changes were measured over the Dans ...
Copernicus GmbH2013Two-phase change in CO 2, Antarctic temperature and global climate during Termination II
Methane measurements along the Vostok ice core reveal substantial changes over the past 160,000 years which are associated with climate fluctuations. These results point to changes in sources of methane and also show that methane has probably contributed, ...
Springer Science and Business Media LLC2013Methane Reacts with Heteropolyacids Chemisorbed on Silica to Produce Acetic Acid under Soft Conditions
David Lyndon Emsley, Aaron James Rossini, Jeremie Pelletier
Selective functionalization of methane at moderate temperature is of crucial economic, environmental, and scientific importance. Here, we report that methane reacts with heteropolyacids (HPAs) chemisorbed on silica to produce acetic acid under soft conditi ...
AMER CHEMICAL SOC2013Carbon isotope constraints on the deglacial CO2 rise from ice cores
ICE-CORE reconstructions of atmospheric methane concentrations for the past 220 kyr have revealed large variations associated with different climatic periods1-4. But the phase relationship between climate and methane has been uncertain because of dating un ...
Springer Science and Business Media LLC2012Above- and below-ground methane fluxes and methanotrophic activity in a landfill-cover soil
Landfills are a major anthropogenic source of the greenhouse gas methane (CH4). However, much of the CH4 produced during the anaerobic degradation of organic waste is consumed by methanotrophic micro-organisms during passage through the landfill-cover soil ...
2012Inoculum origin and adaptation had no influence on biomethane potential results with different substrates
Christof Holliger, Marc Deront, Nathalie Bachmann
Biomethane potential (BMP) tests are a valuable tool to design different parts of full-scale anaerobic digestion plants. Recent inter-laboratory studies have shown that the results of BMP tests can vary considerably and a comparison of BMP test norm protoc ...
International Waste Water Group2012Methane formation and future extraction in Lake Kivu
Alfred Johny Wüest, Martin Schmid
This chapter summarises the current knowledge on the vertical distribution of methane (CH4) and its formation in Lake Kivu. Additionally, we review the objectives and restrictions under consideration for sustainable extraction (safe, environmentally accept ...
Springer2012Natural and anthropogenic variations in methane sources during the past two millennia
Jed Oliver Kaplan, Kristen Marie Krumhardt
Methane is an important greenhouse gas that is emitted from multiple natural and anthropogenic sources. Atmospheric methane concentrations have varied on a number of time scales in the past, but what has caused these variations is not always well understoo ...
Nature Publishing Group2012Continuous measurements of methane mixing ratios from ice cores
Advances in trace gas analysis allow localised, non-atmospheric features to be resolved in ice cores, superimposed on the coherent atmospheric signal. These high-frequency signals could not have survived the low-pass filter effect that gas diffusion in the ...
Copernicus GmbH2012Flooding of the continental shelves as a contributor to deglacial CH4 rise
The transition from the last glacial and beginning of BollingAllerod and Pre-Boreal periods in particular is marked by rapid increases in atmospheric methane (CH4) concentrations. The CH4 concentrations reached during these intervals, similar to 650750 ppb ...
Wiley-Blackwell2012