Plants to "grow" clean air

Dundas,, ON(Zone 5b)

I thought this might be interesting to some of you. If you don't know the TED site, it has some fascinating stuff.

http://www.ted.com/index.php/talks/kamal_meattle_on_how_to_grow_your_own_fresh_air.html

What they've done with the building and the stats he quotes are encouraging - but I gotta say, you know if someone is wiping down all those leaves each day, it's a bet they don't pay union wages, eh?

~m

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