Blue honey in jar
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Beekeepers solve blue honey mystery

Beekeepers in northeastern France have been alarmed to find their bees producing honey in unnatural shades of green and blue.

Beekeepers in northeastern France have been alarmed to find their bees producing honey in unnatural shades of green and blue.

The beekeepers believe the source of the problem is a biogas plant close to Ribeauville in Alsace, as Catharina Moh reports.