Significantly more carbon is stored in the world's soils—including peatlands, wetlands and
permafrost—than is present in the atmosphere. Disagreement exists, however, regarding the …

Methane-utilizing bacteria (methanotrophs) are a diverse group of gram-negative bacteria
that are related to other members of the Proteobacteria. These bacteria are classified into …

Arctic wetlands are known methane (CH4) emitters but recent studies suggest that the Arctic
CH4 sink strength may be underestimated. Here we explore the capacity of well-drained …

Boreal and subarctic peatlands comprise a carbon pool of 455 Pg that has accumulated
during the postglacial period at an average net rate of 0.096 Pg/yr (1 Pg= 1015g). Using …

For the past 3.8 billion years, the geochemistry of the Earth's surface-its atmosphere, waters
and exposed crust-has been determined by the presence of biota. Photosynthetic organisms …

The aim of this paper is to review the role of methane in the global warming scenario and to
examine the contribution to atmospheric methane made by enteric fermentation, mainly by …

Methanotrophs, cells that consume methane (CH4) as their sole source of carbon and
energy, play key roles in the global carbon cycle, including controlling anthropogenic and …

The global atmospheric level of methane (CH4), the second most important greenhouse
gas, is currently increasing by∼ 10 million tons per year. Microbial oxidation in unsaturated …

The recent warming in the Arctic is affecting a broad spectrum of physical, ecological, and
human/cultural systems that may be irreversible on century time scales and have the …

Rates of methane (CH 4) production under anaerobic conditions and CH 4 consumption
under aerobic conditions were studied in slurries of peat samples kept at different …