shale gas: the new energy boom?

From Amy Jaffe in the WSJ...

There's an energy revolution brewing right under our feet.

Over the past decade, a wave of drilling around the world has uncovered giant supplies of natural gas in shale rock. By some estimates, there's 1,000 trillion cubic feet recoverable in North America alone—enough to supply the nation's natural-gas needs for the next 45 years. Europe may have nearly 200 trillion cubic feet of its own.

We've always known the potential of shale; we just didn't have the technology to get to it at a low enough cost. Now new techniques have driven down the price tag—and set the stage for shale gas to become what will be the game-changing resource of the decade.

I have been studying the energy markets for 30 years, and I am convinced that shale gas will revolutionize the industry—and change the world—in the coming decades. It will prevent the rise of any new cartels. It will alter geopolitics...

To be sure, plenty of people (including Russian Prime Minister Vladimir Putin and many Wall Street energy analysts) aren't convinced that shale gas has the potential to be such a game changer. Their arguments revolve around two main points: that shale-gas exploration is too expensive and that it carries environmental risks.

I'd argue they are wrong on both counts.

Take costs first. Over the past decade, new techniques have been developed that drastically cut the price tag of production....

When it comes to environmental risks, critics do have a point: They say drilling for shale gas runs a risk to ground water, even though shale is generally found thousands of feet below the water table. If a well casing fails, they argue, drilling fluids can seep into aquifers. [But] they're overplaying the danger of such a failure....regulations and enforcement must be tightened to ensure safety....

But the skeptics aren't just overstating the obstacles. They're missing two much bigger points. For one thing, they're ignoring history: The reserves and production of new energy resources tend to increase over time, not decrease. They're also not taking into account how quickly public opinion can change...