Since buildings account for an important fraction of world energy consumption, as far as architects are responsible for buildings, architects are responsible for their contribution to global warming. Professional and human ethics both require architects to design for sustainability.
Architectural journalists have our own responsibility to stand up for the truth on global warming.
Recently, therefore, I was particularly concerned to read an editorial in the generally excellent Architectural Review which started by stating that global warming was still scientifically in doubt. That is just as false coming from Architectural Review as it is coming from our President Bush. Collectively we need to build for substantial reductions of energy consumption. Business as usual is just not good enough.