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 around both ice …

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 …

Ice sheets are currently ignored in global methane budgets 1 , 2 . Although ice sheets have
been proposed to contain large reserves of methane that may contribute to a rise in …

Anthropogenic conversion of forests and wetlands to agricultural and urban landcovers impacts
dissolved organic matter (DOM) within streams draining these catchments. Research on …

Iceberg-hosted sediments and atmospheric dust transport potentially bioavailable iron to the
Arctic and Southern oceans as ferrihydrite. Ferrihydrite is nanoparticulate and more soluble, …

Physical erosion and chemical weathering rates beneath glaciers are expected to increase
in a warming climate with enhanced melting but are poorly constrained. We present a global …

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. Here, we …

Glaciers and ice sheets are a significant source of nanoparticulate Fe, which is potentially
important in sustaining the high productivity observed in the near-coastal regions proximal to …

Landcover changes have altered the natural carbon cycle; however, most landcover studies
focus on either forest conversion to agriculture or urban, rarely both. We present differences …

Projections of Antarctica's contribution to future sea level rise are associated with significant
uncertainty, in part because the observational record is too short to capture long‐term …