I have con­duc­ted 347 inter­views and pre­sen­ta­ti­ons for the 16 Online Orga­nic Bal­c­o­ny Con­gres­ses to date. Here are the best ones sor­ted by topic. The pro­ceeds will be used to finan­ce the bal­c­o­ny school in Ber­lin — as crowd­fun­ding. Dona­te and recei­ve prac­ti­cal tips for more bio­di­ver­si­ty in the city.