Seven-year-old brings his reusable water bottle campaign to Holyrood

The transcript discusses Callum's initiative to reduce plastic use by promoting reusable bottles in schools. Initially dissatisfied with the plastic bottles provided at his school, Callum campaigned for change, leading to a broader movement across Scotland. His efforts earned him recognition and an invitation to COP 26. The transcript highlights the challenges, achievements, and future aspirations of Callum's campaign, with support from his parents.

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