If you have not heard of the environmental organization called Hudson River Sloop Clearwater, I urge you to look them up. Started by folk musician and environmentalist, Pete Seeger and his wife, Toshi, its mission since its founding in 1969 is to protect the waters of the Hudson River and beyond. Supporting this mission is the annual Clearwater Great Hudson River Revival — an environmental/folk music festival each Father’s Day weekend in Croton-on-Hudson, NY. If you have never attended, you are missing out. I volunteer on the Zero Waste team during the festival (in 2015 our team diverted 12.88 tons (or 81%) of compost and recycling from the waste stream. Satisfying work!) Oh, and there is the music: highlights for me this year were Toshi Reagon & Big Lovely, Josh Ritter, Lake Street Dive, Lucky Chops, Nathan & the Zydeco Cha Chas, Richard Thompson and Arlo Guthrie. (And the list of who I wish I had time to see is twice as long. The festival is just that good, and all taking place along the beautiful Hudson River.) Save the date for next year. Better yet? Volunteer!