Methane (CH4), a highly reduced C1 compound, is one of the long-lived atmospheric gases withhigh global warming potential i.e., 28–36 times that of CO2over 100 years. The atmospheric levelsof CH4reached∼1863 part per billions (ppb) in 2014, and annual increase of atmospheric CH4level thereafter measured as∼10 ppb. The CH4is projected to drive the rise in global temperatureof∼4–6◦C by 2050, and thus it is currently considered as the main target for global climatestabilization and mitigation (COP-21, 2015). Capturing anthropogenic CH4to produce valueproducts is highly feasible, but the great challenge is that totap, concentrate, purify, store, transport,and utilize the CH4from different point emission sources is presently not economically viable.
Bibliographical noteThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- electron transfer
- value addition and sustainability