scholarly journals Revival of Archaeal Methane Microbiology

mSystems ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Cornelia U. Welte
Keyword(s):  
Climate Change ◽  
Greenhouse Gas ◽  
Methane Concentration ◽  
Methanogenic Archaea ◽  
Future Outlook ◽  
Earth’S Atmosphere ◽  
Methane Oxidizing Bacteria ◽  
Earth's Atmosphere

ABSTRACT The methane concentration in the Earth’s atmosphere is rising, and, as methane is a potent greenhouse gas, it contributes considerably to climate change. It is produced by methanogenic archaea that thrive in anoxic habitats and can be oxidized by methane-oxidizing bacteria or archaea. In this Perspective , recent innovations and discoveries in archaeal methane microbiology are discussed and a future outlook on how novel methane-metabolizing archaea might be cultivated is provided.

Methane: A greenhouse gas in the Earth's atmosphere

1992 ◽  
Vol 41 (2) ◽  
pp. 95-113 ◽  
Author(s):  
O. Badr ◽  
S.D. Probert ◽  
P.W. O'Callaghan
Keyword(s):  
Greenhouse Gas ◽  
Earth’S Atmosphere ◽  
Earth's Atmosphere

Harnessing Electrochemical pH Gradient for Direct Air Capture with Hydrogen and Oxygen By-Products in a Calcium-Based Loop

2021 ◽  
Author(s):  
Congquan Zhou ◽  
Jihong Ni ◽  
Huiqi Chen ◽  
Xiaofei Guan
Keyword(s):  
Climate Change ◽  
Co2 Concentration ◽  
Ph Gradient ◽  
Earth’S Atmosphere ◽  
Direct Air Capture ◽  
Air Capture ◽  
Earth's Atmosphere ◽  
By Products

Direct air capture is considered as one of the most important strategies for controlling the CO2 concentration in the earth’s atmosphere and thereby mitigating the climate change. The current direct...

Roles and opportunities for microbial anaerobic oxidation of methane in natural and engineered systems

2021 ◽  
Author(s):  
Chen Cai ◽  
Xueqin Zhang ◽  
Mengxiong Wu ◽  
Tao Liu ◽  
Chun-Yu Lai ◽  
...  
Keyword(s):  
Climate Change ◽  
Sulfate Reduction ◽  
Methane Emissions ◽  
Anaerobic Oxidation Of Methane ◽  
Anaerobic Oxidation ◽  
Earth’S Atmosphere ◽  
Oxidation Of Methane ◽  
Earth's Atmosphere ◽  
Engineered Systems

Reduction in methane emissions to the Earth’s atmosphere is a critical strategy for tackling climate change. It is well established that anaerobic oxidation of methane (AOM) associated with sulfate reduction...

scholarly journals Nanostructured metal oxide semiconductor-based sensors for greenhouse gas detection: progress and challenges

2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Yogendra K. Gautam ◽  
Kavita Sharma ◽  
Shrestha Tyagi ◽  
Anit K. Ambedkar ◽  
Manika Chaudhary ◽  
...  
Keyword(s):  
Climate Change ◽  
Metal Oxide ◽  
Greenhouse Gases ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
Anthropogenic Emissions ◽  
Earth’S Atmosphere ◽  
Advantages And Disadvantages ◽  
Earth's Atmosphere ◽  
Nanostructured Metal

Climate change and global warming have been two massive concerns for the scientific community during the last few decades. Anthropogenic emissions of greenhouse gases (GHGs) have greatly amplified the level of greenhouse gases in the Earth's atmosphere which results in the gradual heating of the atmosphere. The precise measurement and reliable quantification of GHGs emission in the environment are of the utmost priority for the study of climate change. The detection of GHGs such as carbon dioxide, methane, nitrous oxide and ozone is the first and foremost step in finding the solution to manage and reduce the concentration of these gases in the Earth's atmosphere. The nanostructured metal oxide semiconductor (NMOS) based technologies for sensing GHGs emission have been found most reliable and accurate. Owing to their fascinating structural and morphological properties metal oxide semiconductors become an important class of materials for GHGs emission sensing technology. In this review article, the current concentration of GHGs in the Earth's environment, dominant sources of anthropogenic emissions of these gases and consequently their possible impacts on human life have been described briefly. Further, the different available technologies for GHG sensors along with their principle of operation have been largely discussed. The advantages and disadvantages of each sensor technology have also been highlighted. In particular, this article presents a comprehensive study on the development of various NMOS-based GHGs sensors and their performance analysis in order to establish a strong detection technology for the anthropogenic GHGs. In the last, the scope for improved sensitivity, selectivity and response time for these sensors, their future trends and outlook for researchers are suggested in the conclusion of this article.

scholarly journals The Paris agreement on Global Climate change cannot be fully enforced, because this is an incomplete agreement

2020 ◽  
Vol 3 (2) ◽  
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Feasible Solution ◽  
Global Climate ◽  
Paris Agreement ◽  
Preliminary Review ◽  
Phase 2 ◽  
Earth’S Atmosphere ◽  
The World ◽  
Earth's Atmosphere

In 2007, billionaire Richard Branson launched a contest with a prize of $ 25 million to choose a feasible solution to protect the Earth’s atmosphere and combat global climate change [1].The contest lasts 5 years, divided into 2 phase, the first phase from 2007 to 2010. By the end of 2010 the organizers will conduct a preliminary review, if a winner is found, the competition is considered to be over. But in fact after the first round, no winners, so the organizers had to conduct phase 2 from 2010 to 2012 to finish. What a pity after 5 years with the participation of millions of scientists, scientific collectives, all over the world, without finding a winner.

scholarly journals The Environmental Impact and Formation of Meals from the Pilot Year of a Las Vegas Convention Food Rescue Program

2019 ◽  
Vol 16 (10) ◽  
pp. 1718 ◽  
Author(s):  
Samantha To ◽  
Courtney Coughenour ◽  
Jennifer Pharr
Keyword(s):  
Climate Change ◽  
Environmental Impact ◽  
Greenhouse Gases ◽  
Environmental Health ◽  
Greenhouse Gas ◽  
Las Vegas ◽  
Ghg Emissions ◽  
Destructive Effect ◽  
Earth’S Atmosphere ◽  
The Us

Annually, millions of tonnes of leftover edible foods are sent to landfill. Not only does this harm the environment by increasing the release of greenhouse gases which contribute to climate change, but it poses a question of ethics given that nearly 16 million households are food insecure in the US, and hundreds of millions of people around the globe. The purpose of this study was to document the amount of food diverted from landfill in the pilot year of a convention food rescue program and to determine the amount of greenhouse gas (GHG) emissions avoided by the diversion of such food. In the pilot year of the convention food rescue program 24,703 kg of food were diverted. It is estimated that 108 metric tonnes of GHG emmisions were avoided as a result, while 45,383 meals for food insecure individuals were produced. These findings have significant implications for public and environmental health, as GHG emissions have a destructive effect on the earth’s atmosphere and rescued food can be redistributed to food insecure individuals.

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