Agriculture, Forest and Other Land Use (AFOLU) sector contributes about a quarter of global greenhouse gas (GHG) emission [1] though its contribution is small in Japan [2]. In addition, technologies to reduce GHGs from agriculture sector are not expensive [3]. It is therefore worth reducing GHGs from this sector. It includes soil carbon (C) sequestration and mitigation of methane (CH4) and Nitr...

The use of natural gas continues to grow with increased discovery and production of unconventional shale resources. At the same time, the natural gas industry faces continued scrutiny for methane emissions from across the supply chain, due to methane's relatively high global warming potential (25-84x that of carbon dioxide, according to the Energy Information Administration). Currently, a varie...

Methane is one of the most significant anthropogenic greenhouse gases, whose global warming potential and sources are well documented. The natural gas industry is a major source of methane emissions. In 2001, unintended (fugitive) leaks from valves, piping connectors, open-ended lines, and pump and compressor seals totaled 3.9 Tg (58% of total U.S. emissions from the natural gas industry). In t...

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 compounds (NMVOC) and nitrogen oxides (NOx) up to the year 2030 and implemented them in two global Chemistry Transport Models. The “Current Legisl...

Methane is a popular alternative fuel for internal combustion engines due to its availability in many forms such as methane hydrates, natural gas, biogas, compressed liquid synthetic and pipe gas. can be effectively used existing diesel dual-fuel mode with few modifications. Dual-fuel technology helps bridge conventional gaseous fuel-powered engines. The properties of methane, including higher ...

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 compounds (NMVOC) and nitrogen oxides (NOx) up to the year 2030 and implemented them in two global Chemistry Transport Models. The “Current Legisl...

Methane—a short-lived and potent greenhouse gas—presents a unique challenge: it is emitted from a large number of highly distributed and diffuse sources. In this regard, the United States’ Environmental Protection Agency (EPA) has recommended periodic leak detection and repair surveys at oil and gas facilities using optical gas imaging technology. This regulation requires an operator to fix all...

In order to contribute to the improvement of the national greenhouse gas emission inventory, this work aimed at estimating a country-specific enteric methane (CH4) emission factor for the Italian Mediterranean buffalo. For this purpose, national agriculture statistics, and information on animal production and farming conditions were analysed, and the emission factor was estimated using the Tier...

Anaerobic oxidation of methane (AOM) is crucial for controlling the emission of this potent greenhouse gas to the atmosphere. Nitrite-, nitrate-, and sulfate-dependent methane oxidation is well-documented, but AOM coupled to the reduction of oxidized metals has so far been demonstrated only in environmental samples. Here, using a freshwater enrichment culture, we show that archaea of the order ...