Results 11 to 20 of about 45,582 (306)

Research status and reduction strategies of methane emissions from closed/abandoned coal mines

open access: yesMeitan xuebao, 2023
With the global transition to a low-carbon energy structure, coupled with the depletion of coal mine resources, gas disasters, and other problems, the number of closed/abandoned coal mines is increasing rapidly.
Yunpei LIANG   +5 more
doaj   +1 more source

Upscaling methane emissions from rice paddies: problems and possibilities. [PDF]

open access: yes, 2002
Global methane emission estimates depend highly on the models, techniques, and databases used. Since emissions cannot be measured directly at large scales, it is impossible to judge which estimate is more realistic.
van Bodegom, P.M.   +4 more
core   +1 more source

Methane Emissions [PDF]

open access: yes, 2017
The environmental impact of methane emissions – which come from a wide range of natural and anthropogenic sources – has received growing attention. Methane is a potent greenhouse gas (GHG). Methane emissions that occur across the gas supply chain have long been seen by the industry as an unfortunate, if necessary, part of doing business.
openaire   +3 more sources

The impact of air pollutant and methane emission controls on tropospheric ozone and radiative forcing: CTM calculations for the period 1990-2030 [PDF]

open access: yes, 2004
To explore the relationship between tropospheric ozone and radiative forcing with changing emissions, we compiled two sets of global scenarios for the emissions of the ozone precursors methane (CH4), carbon monoxide (CO), non-methane volatile organic ...
F. Dentener   +17 more
core   +1 more source

Quantification of methane oxidation in the rice rhizosphere using 13C-labelled methane [PDF]

open access: yes, 1994
In this paper isotope ratio mass spectrometry is used to determine the methane (CH4) oxidation fraction in the rhizosphere of intact rice plant-soil systems.
Harren, F.J.M.   +11 more
core   +1 more source

Composting and Methane Emissions of Coffee By-Products [PDF]

open access: yesAtmosphere, 2021
In the last 20 years, the demand for coffee production has increased detrimentally, heightening the need for production, which is currently driving the increase in land cultivation for coffee. However, this increase in production ultimately leads to the amplification of waste produced.
Macarena San Martin Ruiz   +2 more
openaire   +3 more sources

Methane oxidation and emission in Lake Lugano (Southern Switzerland) : a lipid biomarker and isotopic approach [PDF]

open access: yes, 2015
Methane is an important greenhouse gas in Earth's atmosphere. The sources of atmospheric methane are largely biogenic, being produced under anoxic conditions by methanogenic Archaea.
Blees, Hendrik Jan Reynier
core   +1 more source

Simulating the effects of grassland management and grass ensiling on methane emission from lactating cows [PDF]

open access: yes, 2010
A dynamic, mechanistic model of enteric fermentation was used to investigate the effect of type and quality of grass forage, dry matter intake (DMI) and proportion of concentrates in dietary dry matter (DM) on variation in methane (CH(4)) emission from ...
Dijkstra, J.   +10 more
core   +1 more source

A review on the methane emission detection during offshore natural gas hydrate production

open access: yesFrontiers in Energy Research, 2023
Due to the high energy density, large potential reserves and only release CO2 and water after combustion, natural gas hydrate (NGH) is considered as the most likely new clean energy source to replace traditional fossil energy (crude oil, natural gas, etc.
Shuangxing Liu   +4 more
doaj   +1 more source

Factors Affecting Enteric Emission Methane and Predictive Models for Dairy Cows

open access: yesAnimals, 2023
Enteric methane emission is the main source of greenhouse gas contribution from dairy cattle. Therefore, it is essential to evaluate drivers and develop more accurate predictive models for such emissions.
Andrea Beltrani Donadia   +5 more
doaj   +1 more source

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