Looking to learn how to be a little greener? I know just the place! The Green House is a sustainable learning center located in Pauoa Valley. The Green House offers different, weekly classes in sustainable living practices for children and adults. It’s totally hands on and very affordable. Topics range from creating natural fertilizer to graywater harvesting and photovoltaic basics workshops. This weekend they’re offering a class on conducting your own home energy audit. It’s the perfect way to learn how to save money around the house. To register, call 524-8427 or visit thegreenhousehawaii.com.