We waked this morning to a heavy fog, the kind that slides down the roof and drips out the gutters. The fog, a product of a high humidity and a cooling temperature inversion, worked on sounds too, isolating us from the busy highway and muting the usual noise clutter. This quieting disconnect lasted until mid-morning, then an eastern wind thinned the fog and caused us to rejoin Earth.
Join with others around the planet, observe Earth Hour tonight and encourage your friends to do the same. If you can't tonight; do it tomorrow night.