The invention of plastic changed human history forever. From sterile medical supplies to food packaging that lengthens shelf lives, our world would grind to a halt without it. But all that plastic has to go somewhere, and it's beginning to show up in huge amounts in our waterways, oceans, and even ourselves. Kurzgesagt looks at the plastic problem and what we can to clean up our own act.
In order to get a giant mural of yourself in Philadelphia, you have to have done something important — like 76ers Dr. J. Will Smith has had one of the biggest careers in TV and Hollywood, and now the Philadelphia native has his own mural. Artist Richard Wilson created it as a tribute to Smith's continued involvement in the city even after becoming a star.