Arctic Ocean

A smooth, pale-blue layer of polar pack ice edged by jagged chunks of floating ice covers much of the frigid waters of the Arctic Ocean, the earth’s northernmost cap. With an area of 12 million square kilometers (5 million square miles), the Arctic Ocean is the smallest ocean - more than five times smaller than the Indian and Atlantic oceans.

Some of the current issues include -
endangered marine species include walruses and whales; fragile ecosystem slow to change and slow to recover from disruptions or damage.