I have mixed feeling posting this picture and referencing Earth Day. It is after all a photograph from an airliner of a tranquil landscape. Although most things look tranquil if you view them from far enough away. But it is a view from above. There is something movingly beautiful about the Earth viewed from space. Many astronauts (and cosomonauts) have spoken about how beautiful the Earth looked from their spacecraft windows. I believe the first Earth Day was in 1970, I wonder if people being able to see the Earth from space made them want to celebrate and care more about it.