The document discusses the environmental impacts of firecrackers used during Diwali celebrations. It outlines the chemicals in crackers and their negative health effects like irritation, damage to organs, and metal fume fever. Noise from crackers can cause hearing loss, high blood pressure, heart attacks, and sleep disturbances. It advocates celebrating a greener Diwali by minimizing or avoiding crackers, decorating with candles, spending time with family, and planting trees.