Results 61 to 70 of about 1,223,966 (289)

Variability in aerobic methane oxidation over the past 1.2 Myrs recorded in microbial biomarker signatures from Congo fan sediments [PDF]

, 2014
Methane (CH4) is a strong greenhouse gas known to have perturbed global climate in the past, especially when released in large quantities over short time periods from continental or marine sources.
Wabakanghanzi, JN, Spencer, Robert G. M., Dinga, Bienvenu, Spencer, Robert, Handley, Luke, Talbot, H.M., Wagner, T, Schefuß, E., Spencer-Jones, CL, Spencer-Jones, Charlotte, Talbot, Helen, Wagner, T., Spencer-Jones, C.L., Bienvenu, DJ, Bienvenu, D.J., Mann, P.J., Poulsen, JR, Wabakanghanzi, J.N., Handley, L, Wagner, Thomas, Talbot, Helen M., Wabakanghanzi, Jose N., Mann, Paul, Spencer-Jones, Charlotte L., Schefuß, Enno, Wagner, Thomas; id_orcid, Talbot, HM, Poulsen, John R., Spencer, R.G.M., Wabakanghanzi, Jose, Poulsen, J.R., Mann, PJ, Spencer, RGM, Spencer, Robert G.M., Dinga, Bienvenu Jean, Poulsen, John, Schefuß, E, Mann, Paul J., Handley, L.   +38 more
core   +1 more source

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

Advanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu, Tianshuo Wei, Yan Ge, Bo Peng, Yue Li, Maolin Wang, Peng Wen, Chao Yang, Ye Wei   +8 more
wiley   +1 more source

CH₄ emission estimates from an active landfill site inferred from a combined approach of CFD modelling and in situ FTIR measurements [PDF]

Atmospheric Measurement Techniques, 2017
Globally, the waste sector contributes to nearly a fifth of anthropogenic methane emitted to the atmosphere and is the second largest source of methane in the UK.
H. Sonderfeld, H. Bösch, H. Bösch, A. P. R. Jeanjean, S. N. Riddick, G. Allen, S. Ars, S. Davies, N. Harris, N. Humpage, R. Leigh, J. Pitt   +11 more
doaj   +1 more source

Synergy of Pd Clusters and TiO2 {101} for Photocatalytic Nonoxidative Coupling of Methane

Advanced Science, EarlyView.
This study presents photocatalytic nonoxidative coupling of methane over cal‐Pd0.05/TiO2{101}, achieving near 100% selectivity and long‐term stability under mild flow conditions through synergistic single atoms and clusters catalysis. ABSTRACT Photocatalytic nonoxidative coupling of methane (NOCM) offers a sustainable route to valorize CH4 into C2 ...
Jianlong Yang, Annika S. Tang, Junwang Tang   +2 more
wiley   +1 more source

Mars Methane Sources in Northwestern Gale Crater Inferred From Back Trajectory Modeling

Earth and Space Science, 2021
During its first seven years of operation, the Sample Analysis at Mars Tunable Laser Spectrometer (TLS) on board the Curiosity rover has detected seven methane spikes above a low background abundance in Gale crater.
Y. Luo, M. A. Mischna, J. C. Lin, B. Fasoli, X. Cai, Y. L. Yung   +5 more
doaj   +1 more source

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

Advanced Science, EarlyView.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas, Anh Tuan Ngo, João Pedro Vale, Ona Falcó, Gerard Martí, Mohamed Amazian, Júlia Mayans, Sònia Estradé, Marcos Gil‐Sepulcre, Teresa Andreu, Francesca Peiró, Tiago Sotto Mayor, Lluís Yedra, Jordi García‐Antón, Josep Puigmartí‐Luis, Xavier Sala, Roc Matheu   +16 more
wiley   +1 more source

EMISI DAN ABSORPSI GAS METANA PADA SISTEM PENANAMAN PADI DI AREA TANAH SAWAH

Jurnal Riset Kimia, 2015
To know there are emission and methane absorption, research was conduted by measuring directly gas methane at the rice field and absorption with metanotroph bactery using chromatography gas.
Marniati Salim, Hiyal Faizah, I Made Sudiana   +2 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Offsetting methane emissions — An alternative to emission equivalence metrics

International Journal of Greenhouse Gas Control, 2013
It is widely recognised that defining trade-offs between greenhouse gas emissions using 'emission equivalence' based on global warming potentials (GWPs) referenced to carbon dioxide produces anomalous results when applied to methane. The short atmospheric lifetime of methane, compared to the timescales of CO2 uptake, leads to the greenhouse warming ...
Lauder, A. R., Enting, I. G., Carter, J. O., Clisby, Nathan, Cowie, A. L., Henry, B. K., Raupach, M. R.   +6 more
openaire   +2 more sources

Atmospheric observations suggest methane emissions in north-eastern China growing with natural gas use

Scientific Reports, 2022
The dramatic increase of natural gas use in China, as a substitute for coal, helps to reduce CO2 emissions and air pollution, but the climate mitigation benefit can be offset by methane leakage into the atmosphere. We estimate methane emissions from 2010
Fenjuan Wang, Shamil Maksyutov, Rajesh Janardanan, Aki Tsuruta, Akihiko Ito, Isamu Morino, Yukio Yoshida, Yasunori Tohjima, Johannes W. Kaiser, Xin Lan, Yong Zhang, Ivan Mammarella, Jost V. Lavric, Tsuneo Matsunaga   +13 more
doaj   +1 more source