| Hiking the Ice Age Trail | May 17, 2010 | |
| Hike in Monches Segment of the Ice Age Trail | May 15, 2010 | |
| Weed-Out Spring 2010 #1 | | Saturday, May 15, 2010 |
| Paddlefest | May 22, 2010 | |
| Water Quality Monitor Training - Level I | | Saturday, May 22, 2010 |
| Paddlefest | May 23, 2010 | |
| Weed-Out Spring 2010 #2 | | Sunday, May 23, 2010 |
| Growing Chicago's Clean Energy Economy | May 11, 2010 | |
| Film Screening of "A Chemical Reaction" | May 02, 2010 | |
| MUG Cafe | May 11, 2010 | |
| Erehwon Outdoor Expo | May 15, 2010 | |
| Erehwon Outdoor Expo | May 16, 2010 | |
| Weed-Out Spring 2010 #1 | | Sunday, May 16, 2010 |
| Film Screening of "A Chemical Reaction" | May 20, 2010 | |
| Green Economic Development in Wisconsin | May 18, 2010 | |
| Solidarity Action for the Gulf Coast | May 14, 2010 | |
| Water Quality Monitor Training - Level II | | Saturday, May 01, 2010 |
| Community Planting Day | | Saturday, May 15, 2010 |
| FREE Intro to Renewable Energy Program | | Tuesday, May 18, 2010 |
| Weed-Out Spring 2010 #2 | | Saturday, May 22, 2010 |
| Weed-Out Spring 2010 #3 | | Saturday, May 29, 2010 |