Since August, beekeepers near the town of Ribeauville, in the northeastern region of Alsace, have been reporting their bees are producing blue and green honey. And they’ve traced the cause back to a biogas plant that processes waste from an M&Ms factory. Bees are apparently picking up vibrantly colored, sugary waste from the plant, operated by the company Agrivalor some 2.5 miles away from their apiaries. A statement from Agrivalor that appeared in the French newspaper Le Monde said the company would clean its containers and store waste in airtight containers to prevent bees from reaching it. “We quickly put in place a procedure to stop it,” Philippe Meinrad, co-manager of Agrivalor, told Reuters.
France generates 18,330 tons of honey per year, making it one of the largest honey producers in the European Union.