Here I am at the annual Passivhaus Conference this weekend in Bregenz, Austria. I've heard the conference is fully booked – with more than 900 individuals from around the world attending. (Wonder if TIME magazine's recent suggestion of building a Passivhaus in their Global Warming Guide to Survival spiked attendance!) Should be an amazing conference that I'll definitely share more about. My colleague from Concordia Language Villages and I will also make the global debut of the first certified Passivhaus in North America: das BioHaus.