Biowall - mean, green air-making machine

Contrary to some international perceptions, Canada is not constantly covered in the 'wet, white, cold stuff' - as I call snow - but there is a long stretch of time where natural greenery is literally a little thin on the ground. Therefore since moving to Canada I've gained an unprecedented appreciation for leaves on trees, green grass etc.

Fortunately during the snowy months there is a green reprieve from the white due to a clever-clogs idea called the biowall.

It's a particularly ingenious concept as not only does it provide pleasing-to-the-eye greenery but also assists in purifying the air, as demonstrated in the diagram below.


For more information on the biowall including how it is maintained, the choices of plants, etc. - click here.