Greenpeace used state of the art recording techniques to explore the little known seabed of the Arctic Ocean, north of Svalbard. Not sure what they would find, their cameras revealed a seabed rich in biodiversity. Read More .

A minke whale breaks the surface of Woodfjorden on north Svalbard.

An adult male walrus pokes his head above the herd, on a beach off the west coast of Svalbard

Crew members standing on deck of the Esperanza help lift a 'bag' out of the water which has been removed from one of the nine 'mesocosms' in Kongsfjord. Each bag is pulled from the sea and neatly packed away on deck ready to be taken back to Kiel.

The crane of the Esperanza lifts a 'bag' out of the water which has been removed from one of the nine 'mesocosms'.

A view of the mountains surrounding Ny-Ålesund reflected in one of the portholes of the Esperanza. The dramatic Arctic landscape was the backdrop to one of the largest experiments on ocean acidification of its kind, and the first in Arctic waters.