"Black carbon," or soot, that spews from ships and makes the Artic Ocean ice melt even faster is an increasing concern in a region beset with many other issues.
Reykjaviik, Iceland — As rising global temperatures speed up the melting of sea ice in the Arctic Ocean, it's set off a boom of ships taking routes that previously were frozen and not traversable.
The increase in marine Arctic traffic, which received... [6237 chars]