Anders Behring Breivik is due to stand trial on Monday over a bomb attack and shooting spree last July that killed 77 people in Norway.
The Arctic holds one fifth of the world’s undiscovered, recoverable oil and natural gas, the United States Geological Survey estimates.
Queen Elizabeth II has written to King Harald of Norway to express her ‘shock and sadness’ at the violent attacks that have left at least 91 people dead.
The official start of the whaling season in Norway has just started. It is one of just three countries defying the 1986 international ban on commercial whaling.