Turbulence in current history may be noted with its financial bubbles, military surges, economic depressions, political upheavals, technological surprises and environmental transformations. Intellectual efforts to tease out major cause-and-effect sequences as linear narratives in such multi-dimensional turbulence might become Sisyphean: a dynamic phenomenon that might seem to act linearly for a decade or two could then flip non-linearly into an unexpected and unwanted systemic manifestation.

Thinking back to my 80th year, I dimly perceive a 25-year-long ‘happening’ from 1968 to 1993; say, related to efforts to resolve numerous environmental difficulties within our Great Laurentian Basin waters. At least 25 persons shared interactive leadership in this emergent happening. Here I focus on several seminal efforts–only some of theirs–to this complex emergence by Jack Vallentyne and Richard Vollenweider. Professional collegiality–in which mutualistic reciprocity across disciplines, jurisdictions and genders dwarfed antagonistic rivalries–suffused these initiatives. Let's call that quarter-century-long happening...

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