Access to cannabis-based products for medical reasons is technically legal in New Zealand.
The United Nations has recently highlighted the impacts associated with sand mining, a problem with many environmental and social consequences.
Negotiations over the years have aimed to protect forests, biodiversity and the climate.
My study raises awareness of the implications of this illicit mining and suggests multi-stakeholder interventions to halt environmental crime.
Although it is important to have a diversity of trees species in urban landscapes, planting and protecting taller species should be strongly encouraged.