The Tower at PNC Plaza, a 32-floor building under construction in downtown Pittsburgh, uses a solar chimney and other passive air handling methods to significan

The Tower at PNC Plaza, a 32-floor building under construction in downtown Pittsburgh, uses a solar chimney and other passive air handling methods to significantly reduce energy consumption: http://www.paladinoandco.com/case-studies/tower-at-pnc-plaza/ http://www.paladinoandco.com/case-studies/tower-at-pnc-plaza...