India, Dec. 5 -- Project Mumbai hosted the Zero Waste Schools Sustainability Mela 2025, a vibrant, youth-led climate action festival titled "Hope in Action: Youth for a Climate-Resilient Mumbai" that brought together over 30 schools, educators, civic leaders, environmentalists, and hundreds of enthusiastic student changemakers. Designed as a bridge between classroom climate initiatives and the upcoming Mumbai Climate Week 2026, the Mela showcased how hands-on sustainability can ignite real behavioural change across the city. The event opened with an engaging introductory segment, including the screening of the Zero Waste Schools film, a diya lighting ceremony, and a welcome to dignitaries who have been pivotal in India's climate and sustain...