some thing i do to keep my green green, is
1. i am carbon offesting - basically paying a company to plant trees equal to the carbon i produce.
2. grow organically any waste water goes into my garden,
3. i am looknig at solar panels to power my fans, pumps and junk and reduce my over all power consumption.
4. i only use recycled materails for my grow, ( indoors that is)
and finally i grow mostly outdoors.