My view of Mr. Gore’s passionate engagement with some of the biggest issues of our time is that he is offering us the kind of vision and sense of urgency that has been so lacking in the presidential campaigns. But the tendency in a society that is skeptical, if not phobic, about anything progressive has been to dismiss his large ideas and wise counsel, as George H. W. Bush once did by deriding him as “ozone man.”

The naysayers will tell you that once again Al Gore is dreaming, that the costs of his visionary energy challenge are too high, the technological obstacles too tough, the timeline too short and the political lift much too heavy.

But that’s the thing about visionaries. They don’t imagine what’s easy. They imagine the benefits to be reaped once all the obstacles are overcome. Mr. Gore will tell you about the wind blowing through the corridor that stretches from Mexico to Canada, through the Plains states, and the tremendous amounts of electricity that would come from capturing the energy of that wind  enough to light up cities and towns from coast to coast.

“We need to make a big, massive, one-off investment to transform our energy infrastructure from one that relies on a dirty, expensive fuel to fuel that is free,” said Mr. Gore. “The sun and the wind and geothermal are not going to run out, and we don’t have to export them from the Persian Gulf, and they are not increasing in price.

Image Bob Herbert

“And since the only factor that controls the price is the efficiency and innovation that goes into the equipment that transforms it into electricity, once you start getting the scales that we’re anticipating, those systems come down in cost.”