08 Apr 2021 --- Frustrated vertical farmers will launch a global sustainability standard in 2021 after years of campaigning failed to budge the EU from its soil-based organic fixation. The German-based Association for Vertical Farming (AVF), which has about 150 members worldwide, will present the standard/seal to its members at a September meeting in Munich, AVF chairwoman Christine Zimmermann-Loessl tells FoodIngredientsFirst.