1. At Jack Johnson concerts, plastic bottles are not sold.
2. Fans will be encouraged to bring reusable water bottles to the concerts.
3. Millions of bottles a year are produced by manufacturers.
4. Too much plastic has been used by us. (or don't include the "by us")
5. Most of our plastic water bottles are not recycled by us. (or don't include the "by us")
6. Animals are harmed by plastic waste.
Martin luther king jr, native american tribes & etc
If you're asking which symbol would have this effect, it would be The medical kit, because you would need to be prepared for the emergency.