Earth Day – April 22, 2009, marks the 39th anniversary of this environmental movement. Founded by Wisconsin U.S. Senator Gaylord Nelson and spearheaded by Denis Hayes in 1970, Earth Day has been credited with the creation of the U.S. Environmental Protection Agency and the passage of earth-protecting legislation such as the Clean Air and Clean Water Acts.

I have to admit, I usually don’t do anything special for Earth Day. I’m usually working. But I believe that my work, keeping drinking water systems and wastewater treatment plants running, is just as important to the environment as staging a rally. After all, every life form needs water–clean water.

And despite all the doom and gloom talk of bad carbon footprints, pharmaceuticals in the water, and water wars, I think we’re doing a pretty good job overall of keeping the planet safe for future generations.

Could we do more? Sure. But the point is, we have to use our brains and common sense–not emotion–to figure out what works best for sustainability.

Really, every day is Earth Day, isn’t it?