"The Healing of the Earth" NIOO Seminar: John D. Liu NIOO Seminar by Chinese-American filmmaker John D. Liu. Title: 'The Healing of the Earth'. The seminar took place on 26 January 2015 in the Colloquium Room at NIOO-KNAW in Wageningen. Practical Solutions Categories Natural sequence farming Drought Wildlands and biodiversity Copied to clipboard