Swedes will turn on their central heating this winter in the knowledge that it may be powered in part by the burning carcasses of thousands of rabbits. The creatures are being harvested from parks in Stockholm, shot dead, deep frozen and shipped to a plant in central Sweden where they are burned and used to heat homes. Some 6,000 rabbits were killed last year for biofuel and 3,000 have so far been culled this year, Stockholm-based newspaper The Local reported. It added that the effort to shoot the rabbits will be stepped up now autumn has arrived and the fallen...