One of the world's top experts on the design and construction of ultra-low energy buildings is visiting the Isle of Man this week.
Hans Eek, from Sweden, has been meeting government officials and held a seminar for the Island's building industry.
Around 15,000 'passive houses' have been built around the world, mostly in Scandinavian countries.
Mr Eek told Stuart Peters the idea is straightforward (extended audio file):
Researching your Manx family history can be a very interesting and rewarding hobby. Trace your roots in the Isle of Man with our helpful of guide.
