New Zealand’s dappled forests, rolling hills and towering ice cliffs have formed the visual signature for the Lord of the Rings franchise, including Amazon’s latest instalment, The Rings of Power. But with some of these towering trees carved out of polystyrene, workers involved in The Rings of Power and other international studio productions in New Zealand say they have serious concerns about the enormous environmental impact – including emissions and waste – of the film industry, partly underwritten by New Zealand’s government. NZ correspondent Tess McClure speaks to Jane Lee about some of these concerns and how the standards of its film industry compares with those in other countries