Eco-spirituality is based on a fundamental belief in the sacredness of nature, Earth, and the universe. It is also based on the fact that we as humans are not separate from nature, we are a part of it. The belief that humanity is somehow separate and above nature has created many of today's problems in one way or another.
Traditional eco-spirituality is as old as humanity and has been practiced by indigenous peoples since the begriming. Today's nondenominational eco-spirituality as practiced on this website includes yet transcends traditional eco-spirituality.
From the eco-spiritual perspective, Ultimate Reality (God, Spirit, Buddha, and/or the Divine,) is not just the source of creation it is very much also a part of creation; a part with which we can interact on a daily basis through our senses and from such experiences gain greater insight into the wonder of reality.
On a personal level, this inherent sacredness of nature and our complete immersion within it generally leads to a spiritually motivated engagement in the current environmental and global warming crises of our planet (see the Job One for Humanity plan,) and a dedication to the justice and long view of a sustainable prosperity for all.
Common sense is not that common. Common sense is derived from an understanding of common reality. At this time, there is not much agreement on what common reality for all of humanity actually is except for the objective reality of the physical universe and its laws. This is one important reason why everyone should study the current facts about the universe and its laws as a whole and integrated system. Once we share a common reality about reality, we will then act in more common sense ways concerning the challenges of our individual and shared futures.