Russell Gold writes in the Wall Street Journal that perhaps the idea of peak oil is a myth. After all, technology keeps getting better and better, allowing us to extract more oil from old fields. Of course, it’s expensive to do business this way: When the oil industry overcomes an obstacle and boosts oil production, costs typically increase. That opens the door for a better and cheaper energy source that will eventually displace crude oil. So at some point, the cost of getting more and more oil likely will get so high that buyers can’t—or won’t—pay….Already, economics is bringing about some changes. Despite the abundance of oil that fracking has delivered, global oil prices remain high. This has kept the door wide open for alternative sources of energy and spending on energy efficiency. …."There will be peak oil, but it will be [because of] peak consumption," says Michael Shellenberger, […]