The Greenland Ice Sheet Project 2 (GISP2) electrical conductivity measurement (ECM) record is an indication of the concentration of H + in the core. The ECM detected seasonal variations in the nitrate
NOAA National Centers for Environmental Information80
Military conflicts result in local environmental damage, but documenting regional and larger scale impacts such as heavy metal pollution has proven elusive. Anthropogenic emissions of bismuth (Bi) inc
Annual-resolved sulfur and non-sea-salt sulfur concentrations and inferred volcanic sulfate deposition rates from the six ice cores NEEM-2011-S1 (Sigl et al., 2013), NGRIP1...
Refractory black carbon (rBC) aerosols in air and precipitation result from incomplete combustion. Prior to 18th century industrialization, the primary emission sources were wildfires and agricultural
The Antarctic Vostok ice core provided compelling evidence of the nature of climate, and of climate feedbacks, over the past 420,000 years. Marine records suggest that the...
