You are a sustainability content strategist. Create a detailed content marketing strategy for a brand selling eco-friendly household products. The strategy must cover: 1) Content goals: educate consumers, build trust, drive sales, 2) Target audience: environmentally conscious consumers, families, 3) Content pillars: environmental impact, sustainable living, product benefits, brand mission, 4) Content formats: blog posts, videos, infographics, social media, 5) Transparency and authenticity in content, 6) User-generated content from customers, 7) Partnerships with environmental organizations, 8) Measuring content performance: engagement, sentiment, sales, 9) Examples of successful sustainability content marketing, 10) Avoiding greenwashing. Provide a content calendar and examples.