The element silicon (Si) is required for the growth of silicified organisms in marine
environments, such as diatoms. These organisms consume vast amounts of Si together with …

Subglacial lakes are repositories of ancient climate conditions, provide habitats for life and
modulate ice flow, basal hydrology, biogeochemical fluxes and geomorphic activity. In this …

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 …

Microorganisms in cold ecosystems play a key ecological role in their natural habitats. Since
these ecosystems are especially sensitive to climate changes, as indicated by the worldwide …

Abstract The Antarctic Ice Sheet (AIS) is out of equilibrium with the current anthropogenic‐
enhanced climate forcing. Paleoenvironmental records and ice sheet models reveal that the …

Observations indicate that groundwater-laden sedimentary aquifers are extensive beneath
large portions of the Greenland and Antarctic ice sheets. A reduction in the mechanical …

Antarctica's fast-flowing ice streams drain the ice sheet, with their velocity modulated by
subglacial water systems. Current knowledge of these water systems is limited to the …

Ice sheets play a more important role in the global silicon cycle than previously appreciated.
Input of dissolved and amorphous particulate silica into natural waters stimulates the growth …

Trace elements sustain biological productivity, yet the significance of trace element
mobilization and export in subglacial runoff from ice sheets is poorly constrained at present …

The Subglacial Antarctic Lakes Scientific Access (SALSA) Project accessed Mercer
Subglacial Lake using environmentally clean hot-water drilling to examine interactions …