Pella Thiel is an ecologist and the co-founder of the Swedish Transition Network, End Ecocide Sweden (currently chairperson), Save the Rainforest Sweden, and the Swedish Network for Rights of Nature (currently coordinator). She serves as one of the experts in the UN Harmony with Nature initiative. She teaches ecopsychology and coordinated the first three Rights of Nature Conferences in Sweden. She holds an MSc in ecology from Stockholm University. In this guest lecture she speak of the need for an new international law on ecocide (genocide of nature).