(Cross-posted from the Official Google Blog to bring you information on other green efforts at Google)Today, Earth Day turns 40 and is now celebrated in more than 198 countries. Here at Google, we’ll be focusing on one of the planet’s more enjoyable aspects: its food. (Though, to be fair, we’re always focused on food around here). Our offices are hosting farmers markets, planting herb gardens, hosting talks on sustainable cooking and much more.