Eco dekiru koto(Eco what we can make)

This week in tv it is showing many things of eco.In program showing the people that make a bike that make a clean when you pedal,and have many volunteers for help to cleam the trash of the streets,in the program appear Sakurai Sho(Arashi) because his is a journalist of the program ZERO,his and the group make a music for ECOLOGY the name the music is Green,the music no have to buy yet,his sing in the concert,the Kosuke Kitajima(his is a swimmer,and he won gold medals in Beijing)his appears and talk a ecology too. I not understand why people throw the trash in the floor the beach,our streets.Go to make a Ecology, Don't wastefulness water or energy .