THE LATEST CRAZE in architecture, after fizzled experiments in Modernism, Post Modernism, Brutalism, Deconstructionism, and Post-Brutal-Deconstructed-Neo-Modernism, is a genuflection to environmentalism called "Green Building" or "Sustainable Architecture." For the most part, building "Green" means cloaking an intrinsically inefficient high rise building in an ecological hair shirt that makes owners feel good and tenants feel miserable.

The latest example of Green Building has risen in San Francisco, where the city by the Bay has ripped apart one of the grittier parts of its foggy utopia to construct what is surely the most ridiculous building of our still young century: the poetically-named Federal Building.

A unique combination of crackpot environmentalism and elaborate ugliness, the Federal Building will finally opens its doors (or flaps, or airlocks, or orifices, or something) later this month and it will boast a number of odd design "features." For instance, the Federal Building is an office tower tall enough to disrupt the city's skyline, yet its elevators only stop on every third floor--the better to conserve energy.

And after trudging up and down the stairs on a blazing summer afternoon the unfortunate tenants soak in their own sweat because the building has no air conditioning . . . again to save energy.

Who could have conceived of such a thing? Imagine a hip West Coast architect who surrounds himself with turtle necked young designers and calls his firm Morphosis and you have Thom Mayne.

A profile of Mayne in the San Francisco Chronicle included this telling insight:

"Mayne doesn't see his work as ugly, for starters. He also seems honestly baffled by the Bay Area notion that new buildings should mimic the architectural character of their surroundings--or, as Mayne puts it, indulge in 'the anachronistic illusion of some other time.'"

With any luck, the Mayne event in San Francisco will be so notoriously bad that it will do for enviro-fundamentalism what the Tweed Courthouse did for corrupt government . . . that is, give it unmistakable form that provokes corrective action.

Until then, federal employees by the Bay will have plenty of time to contemplate the consequences of global climate change while working in their very own greenhouse.

Philip Murphy is a corporate speechwriter in New York City.