As the name implies, it is the interest of nature!
Concise without losing the connotation!
Your requirements are related to green, environmental protection, ecological balance and afforestation!
So of course, it is closely related to nature!
The word "natural interest" comes from the ancient poem "nature is full of natural interest", which is implicit, profound and lasting!
Then I'll add one more thing! The main reason is that your content is too broad, involving all aspects of the earth, society and ecology. If it is a simple aspect, it will be much easier. After careful consideration, I finally thought of an easy-to-understand and wide-ranging theme: "The World's Web of Life" seems to be the theme of an environmental protection day in the last century!
If it still doesn't work, then I really can't help it. I'm just a little ignorant, brother. Please forgive me!