Which CEO introduced the first comprehensive 'Eco-Scale' rating system that evaluates the environmental impact of products based on their ingredients, packaging, and manufacturing processes?

The natural products industry has seen remarkable growth as consumers increasingly prioritize sustainability and environmental responsibility. Behind this revolution are visionary CEOs who have transformed how we approach retail in harmony with nature. This trivia question tests your knowledge of influential leaders who have shaped the intersection of retail and environmental stewardship. Can you identify the CEO who pioneered one of the most significant sustainability initiatives in natural retail?

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John Mackey (Whole Foods Market)
Walter Robb (Whole Foods Market)
Gary Hirshberg (Stonyfield Farm)
Yvon Chouinard (Patagonia)