Well, green roofs (https://en.wikipedia.org/wiki/Green_roof https://en.wikipedia.org/wiki/Green_roof) are having a comeback all over the world, so it's quite po

Well, green roofs (https://en.wikipedia.org/wiki/Green_roof https://en.wikipedia.org/wiki/Green_roof) are having a comeback all over the world, so it's quite possible Iceland will pick them up again as well...