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<p>The wetlands and surrounding forests of Te Awarua o Porirua, or Porirua Harbour, were once rich food baskets for Ngāti Toa Rangatira. But decades of development throughout the catchment - large-scale deforestation, road and rail building and urban growth - have brought sediment and pollution into the harbour, damaging the habitat. Veronika Meduna meets some of the team working to restore the harbour to its former plenty.</p><p><strong><em><a href="https://radionz.us6.list-manage.com/subscribe?u=211a938dcf3e634ba2427dde9&id=81ad21bafe">Sign up to the Our Changing World monthly newsletter</a> for episode backstories, science analysis and more.</em></strong></p><p><strong>Learn more:</strong></p><ul><li><a href="https://www.rnz.co.nz/national/programmes/mapuna/audio/2019012829/mapuna-podcast-november-15">Julian Wilcox recently spoke</a> to artists Jasmine Arthur and Te Rauparaha Horomona about Ngati Toa in Porirua and the opening of a new exhibition Mutumutu ki Mukukai Freshwater t...