Earth's atmosphere more chemically reactive in cold climates A Greenland ice core providing a first glimpse at the history of reactive oxidants shows that for big temperature swings in the past 100,000 years, reactive oxidants are actually higher in cold climates. This means that new mechanisms -- not just water vapor, plant and soil emissions -- must affect the concentration of ozone and other oxidants in the atmosphere. Ref. Source 2n.
Greenland ice sheet toxicity. The Greenland ice sheet is often seen as a pristine environment, but new research has revealed that may not be the case. Scientists have examined how microbes from the ice sheet have the potential to resist and degrade globally-emitted contaminants such as mercury, lead, PAH and PCB. Source 7i.
Summer sea ice melt in the Arctic. Earlier this year Arctic sea ice sank to a record low wintertime extent for the third straight year. Now NASA is flying a set of instruments north of Greenland to observe the impact of the melt season on the Arctic's oldest and thickest sea ice. Source 9v.
Well, the Vikings named it Greenland to attract settlers. It was not at all green back in their day. That said, if Greenland ever does get truly green we'll be in a lot of trouble as a species since the oceans will have risen significantly.