Numerous international scientific assessments and related articles have, during the last
decade, described the observed and potential impacts of climate change as well as other …

Sources of methane (CH 4) become highly variable for countries undergoing a heightened
period of development due to both human activity and climate change. An urgent need …

Understanding methane (CH4) emission from thermokarst lakes is crucial for predicting the
impacts of abrupt thaw on the permafrost carbon-climate feedback. However, observational …

Global wetlands are believed to be climate sensitive, and are the largest natural emitters of
methane (CH 4). Increased wetland CH 4 emissions could act as a positive feedback to …

Soils in Arctic and boreal ecosystems store twice as much carbon as the atmosphere, a
portion of which may be released as high-latitude soils warm. Some of the uncertainty in the …

Several recent climate impact assessments on polar regions have been undertaken,
including the synthesis report on Snow, Water, Ice and Permafrost in the Arctic (AMAP …

Permafrost thaw exposes previously frozen soil organic matter to microbial decomposition.
This process generates methane and carbon dioxide, and thereby fuels a positive feedback …

Thermokarst lakes are potentially important sources of methane (CH4) and carbon dioxide
(CO2). However, considerable uncertainty exists regarding carbon emissions from …

Water-level fluctuations due to reservoir management could substantially affect the timing
and magnitude of reservoir methane (CH4) fluxes to the atmosphere. However, effects of …

Ebullition (bubbling) from small lakes and ponds at high latitudes is an important yet
unconstrained source of atmospheric methane (CH4). Small water bodies are most …