2025年3月14日 · Estimates of the globally-averaged CH 4 abundance (monthly- and annually-averaged means), and the annual increase, are updated every month as new samples are …

2021年9月20日 · In 2020, CO 2 was at ~410 parts per million, while CH 4 was around 1870 parts per billion (or 1.87 ppm, a factor of more than 200 smaller). However the relative rise since the pre-industrial is three times larger for CH 4, around 150%, compared to the 50% increase in CO 2.

2022年9月1日 · Reservoir-induced radiative forcing is increasing globally due to rising methane emissions outweighing declining carbon dioxide emissions, according to modelling based on reservoir surface area...

2022年8月1日 · Methane (CH 4) is a potent climate warmer: often referred to as the second most important greenhouse gas (GHG) after carbon dioxide (CO 2), it is responsible for approximately 20% of the direct radiative forcing since 1750 (Forster et al., 2021).

2013年5月18日 · We propose a transparent climate debt index incorporating both methane (CH 4) and carbon dioxide (CO 2) emissions. We develop national historic emissions databases for both greenhouse gases to 2005, justifying 1950 as the starting point for global perspectives.

2024年7月20日 · Key GHG components such as carbon dioxide (CO2), methane (CH 4), and nitrous oxide (N2O) are considered, along with data on emissions across various economic sectors. The consequences of climate change are also highlighted, ranging from more frequent and intense extreme weather events to rising sea levels and …

2024年4月10日 · In this study, we investigate the feasibility and the potential role of iron in linking CH 4 oxidation and CO 2 reduction. We employ both microcosm and enrichment cultures to monitor carbon...

2024年1月3日 · Our study indicates that only 23% of global wetlands will decrease methane relative to carbon dioxide emissions under future warming scenarios when soil organic matter decomposability is...

2024年5月1日 · The bioconversion of CO2 and CH 4 into desired products involves complex metabolic pathways and a cascade of multiple enzymes and reactions. Certain specialized enzymes are essential in facilitating the assimilation of CO 2 and CH 4 by microorganisms for carbon metabolism.

2025年1月16日 · Methane (CH4): Methane is emitted during the production and transport of coal, natural gas, and oil. Methane emissions also result from livestock and other agricultural practices, land use, and by the decay of organic waste in municipal solid waste landfills.