How does a Straw work?

Do Straws actually cause pollution? How are Straws being made safer for the environment? Why can't you use a Straw in space? Thank you for being a subscriber! Please leave a great review right here in the app, and you might hear it on an upcoming episode! Get official Who Smarted? Merch: tee-shirts, mugs, hoodies and more, at Who Smarted?