This language around protecting the rights of nature comes from not only a number of organizations but also a number of first nation individuals who have been advocating to protect the rights of nature.
Here where I live on Vancouver Island in the Salish Sea, the Esquimalt and Songhees nations have participated in reconciliation dialogues asking for areas to be protected, recognizing that nature should have rights, since in their opinion these are living entities. There has also been an amazing movement around the St. Lawrence River as well, and around the world. In areas like New Zealand there are folks who are advocating to protect the rights of nature.