The cycling of carbon on Earth exerts a fundamental influence upon the greenhouse gas
content of the atmosphere, and hence global climate over millennia. Until recently, ice …

Glaciers and ice sheets are melting in response to climate warming. Whereas the physical
behaviour of glaciers has been studied intensively, the biological processes associated with …

Abstract The Greenland and Antarctic Ice Sheets cover~\n10% of global land surface, but
are rarely considered as active components of the global iron cycle. The ocean waters …

Glacial meltwater exports a unique type of organic carbon to marine systems, distinct from
non-glacially derived riverine export, potentially capable of stimulating downstream marine …

A dark region tens of kilometres wide is located in the western ablation zone of the
Greenland ice sheet. The dark appearance is caused by higher amounts of dust relative to …

Subglacial environments are largely anoxic, contain organic carbon (OC) overridden by
glacier ice during periods of advance, and harbour active microbial communities. This …

Microbial processes that mineralize organic carbon and enhance solute production at the
bed of polar ice sheets could be of a magnitude sufficient to affect global elemental cycles …

Abstract The Greenland Ice Sheet is losing mass at a remarkable rate as a result of climatic
warming. This mass loss coincides with the export of dissolved organic matter (DOM) in …

Solute export from the Greenland Ice Sheet (GrIS) to coastal regions around Greenland is
likely to increase in the future as a consequence of increasing icemelt production. Here, we …

Modelling the development of soils in glacier forefields is necessary in order to assess how
microbial and geochemical processes interact and shape soil development in response to …