This is the quietest spring I’ve experienced. It’s not my hearing. The Merlin app is hardly picking any bird songs up.

Winter will never be the way it was, according to scientists. Towards the end of the century, the Norwegian Meteorological Institute predicts that the winter weather will gradually disappear from Oslo.

Extreme drought in the west means that households with private waterworks are out of water. Elvar's dried up. "The situation is very serious," he says.