It's World Earth Day today, and even Google has jumped on the bandwagon. Today's Google-doodle shows either the Rufous hummingbird, Japanese macaque, the puffer fish and the moon jellyfish wishing netizens Happy Earth Day! But on a more local level, did you know the world was celebrating its biggest day? So, we're asking you today: It's World Earth Day - do you really care? Our lines were open.