To fully enjoy our natural reality, first we have to understand the high-ecological-value that they have, how fragile they are and how we impact them. And then we must reach in a sustainable and respectful way. For this purpose, it’s essential to do a meditated planification of the route we are willing to take and of all parameters that affect our interaction with the environment.
There are world days of many important causes, but there is only one that unites them all: the "World Day of Nature", because it serves to remind us that it is "our" day, the day of all of us, animals, humans, or non-humans, as well as plants, landscapes and ecosystems in general.
There is no longer any discussion, scientific or in media, that the current human civilization is causing climate change at an unprecedented speed, especially since the invention of the steam engine (around 1750) and the intensive use of fossil fuels as the main energy source.