We share planet Earth with over 7.5 billion other people. It can be easy to think that just one individual cannot make a difference. This can be a dangerous thought if everyone in the entire population makes a decision that can harm the planet. When it comes to plastic pollution, people often say, “But it’s just one bag.” But if everyone thought this way, we’d be swimming in trash. Now imagine if everyone did just one good deed instead? The following people knew that one person can change everything.