John WarrenJohn Warren has had a career spread across three continents and many different agricultural systems. He has worked with farmers and growers from the Highlands and Islands of Scotland to the smallholder farmers and oil palm plantations of Papua New Gunea. Within education he was involved in teaching students from diploma level through to post-graduates, covering topics including: sustainable agriculture, countryside management, conservation, and ecological design. In 2016, he left Aberystwyth University where he had been Professor of Agri-Botany to become Vice Chancellor of the Papua New Guinea, University of Natural Resources and Environment. Since retiring, he runs a small holding in west Wales, trying to put into practice much of what he covered in lectures. Read More Read Less