questions about ecological intelligence

Ecological Intelligence is about how we understand the complex ecology system, the balance between different living beings. The ways of different creatures affecting each other. The other article talked about human beings’ ecosystem, illustrating how human beings and microbes depend on each other to survive. Ecosystem is a complicated mechanism which took human centuries of continuous exploration. As Bower said, the language we use today carries the misconception of the past human who don’t know about environmental issues. But he also mentioned that lost linguistic diversity and intergenerational knowledge are precious  experience that could contribute to a more harmonic ecology. Are these two sayings contradictory? Moreover, How can we be sure that our concept of environment today is totally accurate? How can we accurately calculate the whole series of consequences for one action?