Which pioneering advertising campaign first used the term 'carbon footprint' to market a natural product line, leading to widespread adoption of this term in eco-friendly product marketing?

Test your knowledge about groundbreaking advertising campaigns that transformed how natural products are marketed to consumers. The natural and organic product industry has seen revolutionary marketing approaches that changed consumer perceptions and established new standards for eco-friendly product positioning. This question focuses on a pivotal moment in natural products advertising that altered the industry landscape.

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BP's 'Beyond Petroleum' campaign (2000)
Patagonia's 'Don't Buy This Jacket' campaign (2011)
The Body Shop's 'Against Animal Testing' campaign (1989)
Seventh Generation's 'Caring Today for Seven Generations of Tomorrow' campaign (1995)