Contribute to clean parks for everyone by participating in Do-It-Yourself Earth Day on Saturday, April 23. Grab a bag from home and head out to your favorite park or trail or discover a new one. Pick up litter you see, while getting fresh air and exercise, then share pictures of your trash haul on by using the hashtag #mplsDIYEarthDay. Northeast parks participating in DIY Earth Day are Beltrami Park, 1111 Summer St. NE; Boom Island Park, 724 Sibley St. NE;…