New York hot air

Walking over blasts of air from the subways is part and parcel of living in NY.  Well I live in London now but on these cold days I remember it was sometimes quite nice to have a gust of warm air go up your legs!  Less so in summer when it smells so rank!  I loved this little film about Joshua Allen Harris's subway air art, what an inspired use of the urban environment.

http://www.youtube.com/watch?v=PH6xCT2aTSo