To understand the whole it is necessary to understand the parts. To understand the parts, it is necessary to understand the whole. Such is the circle of understanding.
I don't have to agree with everything you say, but I should attempt at least to understand it, for the opposite of mutual understanding is, quite simply, war.
Saving the biosphere depends first and foremost on human beings reaching mutual understanding and unforced agreement as to common ends. And that intersubjective accord occurs only in the noosphere. Anything short of that noospheric accord will continue to destroy the biosphere.