Today is Earth Day in the United States. It’s OK if you did not know this. The first Earth Day was in 1970, when I was a mere lad. I have a vague recollection that the first Earth Day was considered a not so serious novelty. I don’t know how one goes about ranking such things, but 42 years later, my estimation is that Earth Day still lags behind most other observances and doesn’t generate as much enthusiasm as, say, St. Patrick’s Day. All the same, there was an Earth Day celebration toay at Fair Park in Dallas, Texas, and I spent a couple of hours walking amongst the celebrants. It was a modest event, with the usual causes (enviornmental, animal, health and fitness), food, music, and a few eye-catching acrobatics. The weather was beautiful, mild and sunny, so maybe the best observance is to declare that today was a truly good day to be on this good earth.