Maybe you are wondering during this super hot summer what you could do to reduce the human impact on climat change. There is a movement of people building low impact homes, sometimes resembling a Hobbit hole. Check it out.
Videolink
More information:
simondale.net/house/why.htm
www.beingsomewhere.net
Videolink
More information:
simondale.net/house/why.htm
www.beingsomewhere.net