J. D. Barker

TL;DR: It is shown that DNA and amino acids from buried organisms can be recovered from the basal sections of deep ice cores, enabling reconstructions of past flora and fauna in high-altitude southern Greenland.

TL;DR: This springtime pulse of MMHg to the High Arctic, in conjunction with climate warming and the thinning and melting of sea ice, may be partially responsible for the increase in concentrations of Hg observed in certain Arctic marine mammals in recent decades.

TL;DR: It is hypothesized that as Cl- concentrations in snowpacks increase, inorganic Hg(II) occurs principally as less reducible chloro complexes and, hence, remains in an oxidized state, and snowpacks that receive both marine aerosol deposition of Cl- and deposition of Hg (II) via springtime atmospheric Hg depletion events, for example, may contain significant loads of HG(II.

TL;DR: In this article, fluorescent excitation-emission matrices (EEMs), parallel factor analysis (PARAFAC) and cluster analysis were used to characterize the fluorescing components of DOM in ice and water samples from seven glaciers in the Canadian Arctic, Norway and Antarctica.

TL;DR: In this paper, the abundance and fluorescence characteristics of dissolved organic carbon (DOC) were investigated at John Evans Glacier and Outre Glacier, Canada, and Victoria Upper Glacier, Antarctica.