We investigate new building techniques in low-impact domestic architecture. Innovation Park, on the outskirts of London, was set up to develop housing that is both affordable and delivers a minimal impact on the environment. We also take a look at how technology is being used to allow doctors at a Melbourne hospital to view patients in rural areas via internet hook-up. Air pollution destroys floral scents, confusing bees and confounding farmers. Energy is generated from the sun even on cloudy days, and from waves under the water and geothermal wells. And cyber updates allow virtual walking tours of Pompeii and add motion to ancient and traditional artworks.