Dick and James take delivery of a geodesic dome - think Eden project. It is not so easy to erect, but James needs it for his grand hydroponics scheme. Lauren looks into the eco-fashion industry. Sam and Mark from CBBC are the eco-test guests. Is our scoreboard big enough to accommodate the number of planets that would be needed if we all lived like them? What will the children say? Chris and Jay are flush with success as their rainwater harvesting begins. Jon Kay discovers that it is not at all easy being green if you live in a listed building or conservation area and want a solar panel or two.