Nowadays we have to reduce pollution around the world because every big or little change matters.
In my opinion if we use cardboard straws, boxes and other small details we will together change the world.
First, plastics kill fishes, turtles, and living beings when they get trapped in the sea. For this reason we have to use cardboard instead of plastic.
Furthermore, the fishes eat the plastic that arrives to sea because they think it is jellyfish. Then when we eat fish we finally eat our own garbage.
To conclude, we have to stop pollution to save living beings including ourselves.