So, for example, chemical pesticide or pollen from genetically engineered plants wafting onto an organic crop from an adjacent field does not cause the harvest to lose its organic status.

FORBES: Is Organic Agriculture "Affluent Narcissism?"

Experts said it was likely that easterly gales had whipped up organic material in the sea to cause the foam.

BBC: Footdee foam clears as area returns to normal after storms