The artist said he wants to raise conversations about climate change with his Floating Island project, commissioned by Lönnström Art Museum in western Finland.
No more forests should need to be cut down to produce energy in Finland, according to a forest lobby group.
A flight captain fired by flag carrier Finnair will face trial in Vantaa for suspected drunkenness last summer when the pilot was about to fly a jet to Rome.
A man and woman were taken into custody after an alleged fight between a group of people that left a man dead in a Helsinki suburb early on Sunday.
Foreign countries continue to engage in espionage on Finland, says the Security Intelligence Service (Supo).