| 2010 Wisconsin Bicycle Summit | April 21, 2010 | |
| 2010 Wisconsin Bicycle Summit | April 22, 2010 | |
| The Future of Fair Trade | April 19, 2010 | |
| Walk for Water & Hike for Your Health | April 18, 2010 | |
| Water Supply, Water Demand, Women & Population | April 08, 2010 | |
| 2010 Feddy Awards | April 10, 2010 | |
| Celebrating Community Gardens | April 15, 2010 | |
| 40th Anniversary Celebration of Earth Day | April 22, 2010 | |
| Computer Recycling Drive for Earth Week | April 17, 2010 | |
| Adopt-A-Beach Training – Racine | | Saturday, April 17, 2010 |
| Runway for Waterways | April 29, 2010 | |
| Runway for Waterways | April 30, 2010 | |
| 15th Annual Spring River Cleanup | | Saturday, April 17, 2010 |
| Adopt-A-Beach Training – Milwaukee | | Tuesday, April 20, 2010 |
| Bicyle Club Leader Training | | Friday, April 09, 2010 |
| Bicyle Club Leader Training | | Saturday, April 10, 2010 |
| Bicyle Club Leader Training | | Sunday, April 11, 2010 |