Alasdair speaks to Peter Wholleben about his new book How Trees Can Save the World.Peter Wholleben is a forester and author who has written over 30 books on ecology and forest management. Peter and Alasdair discuss the problems with plantation forests, the power of trees to influence their local ecosystems and what modern forestry gets wrong.How Trees Can Save the World was published in March and is available to buy from Harper Collins here. Audio engineering by Vasko Kostovski.Read an extract from How Trees Can Save the World:  'Climate crisis is exposing hard truths about commercial forestry', Land and Climate ReviewOther books by Peter:The Hidden Life of TreesThe Heartbeat of TreesThe Inner Life of AnimalsThe Secret Wisdom of NatureClick here to read our investigation into the UK biomass supply chain, or watch a clip from the BBC Newsnight documentary.