1. The document provides information about a student project conducted by 5 students from Raffles Institution in Singapore to promote the use of handkerchiefs over tissues and raise environmental awareness.
2. The students interviewed teachers, held an exhibition, sold handkerchiefs, and had volunteers use handkerchiefs for 3 days to spread awareness of reducing tissue waste.
3. Over 80% of handkerchiefs were sold and the students became more committed to using handkerchiefs themselves after completing the project.