Notions of the ecosystems of the past plays a major role in the debate on biodiversity. Professor emeritus Bent Odgaard and others document on the basis of measuring e.g. titanium in a borehole on Mols that the primeval forest before agriculture came was dense and not particularly affected by large grazers in contrast to theories of rewilding

They can learn about the subject with Associate Professor Mads Faurschou Knudsen as a digital guest teacher on Denmark's learning platform EMU – a platform made by the Ministry of Children and Education. Through videos and teaching material targeted at 8th and 9th grade, Mads talks about key issues in connection with climate change.

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