Essential reads:
Defining Nature vs. Biodiversity
Nature is the natural world: all the natural capital, processes and natural phenomena that exist, such as freshwater, air, the weather, oceans, forests, minerals, soil, organisms and mountains. It also includes ecosystem services such as water filtration, pollination, climate regulation and many others.
Nature can be understood through a construct of four realms upon which all life on earth depends: Freshwater, Land, Ocean and Atmosphere (TNFD).
Biodiversity is the variability within species, between species and of ecosystems. In other words, biodiversity is the diversity of all living things. More biodiversity is essential to a healthy, stable and resilient planet.