Click here for your enhanced WWOOFer Experience on Eco-Building.
1)Enjoy researching the subject before you come WWOOFing in Ireland
2) Complete the Worksheet/Quiz when you are with a Host in Ireland.

Here there is more about Eco versus Low Energy. A fascinating subject.
In the PDF (link above), there is a link to the Worksheet/Quiz for you to fill out and enjoy. If you put the effort into filling this out, you will receive a Certificate from WWOOF Ireland!