RedOrbit: Warmer than average Arctic temperatures in recent years have been stirring up all kinds of ecological changes and a new study in the journal Global Change Biology indicates that polar bears could be getting exposed to higher levels of toxins as a result.
The study looked at an East Greenlandic population of polar bears, which is expected to enjoy the Arctic sea ice far longer than other regions. However, the loss of ice sheet cover in these waters occurs at a rate of nearly 1 percent per year,...