The world's cutest biofuel: burning bunnies.
But the fate of these cute corpses is causing a stir amongst Stockholm residents.
The rigid rabbits are collected by contractors, taken to the town of Karlskog, and burned to heat the town.
Leo Virta, the Managing Director of Konvex - the plant's suppliers - told the BBC that Konvex has developed a new way of processing animal waste with funding from the EU as part of the Biomal project.
He says that with this new method, raw animal material is crushed, ground and then pumped to a boiler where it is burned together with wood chips, peat or waste to produce renewable heat.
"It is a good system as it solves the problem of dealing with animal waste and it provides heat," said Mr Virta.
The Karlskogans don't mind what provides their heat, but in Stockholm, the urbanised residents think they're just too cute to burn...
What do you think? Clever use of waste biomass, or cruelty to bunnies?