“You get all these architects talking about being green [and] building all-glass buildings, which I believe is the opposite of green,” Stephen Byrns, a partner at BKSK Architects, said. “I think you will see a lot of hypocrites in the architecture world nowadays, because it’s very fashionable to build all-glass buildings.”While the glass panels allow more natural light, which can replace electric bulbs, that same light heats up rooms during the summer, requiring more cooling. And the window walls are poorly insulated; during the winter they cause inflated heating bills. This all leads to further energy consumption, as spelled out in a report last year by the Urban Green Council, the New York chapter of the U.S. Green Building Council (the LEED-certifying guys).
The Backlash Against Glass Buildings in New York City | Commercial Observer