In the latest Newsweek, Sharon Begley displays some surprise that factors other than a carbon tax could encourage businesses to consider using alternative forms of energy.

While she devotes little attention to it, the most important factor ? potential cost savings ? does make an appearance.

Most ?green? ideas are too expensive to make business sense, but Begley offers one example that shows why businesses need no government coercion to take steps that lead to real benefits:

Retrofits such as energy-efficient windows at the Empire State Building, which had an $11 million annual energy bill, will cut energy use 38 percent, save $4.4 million a year, and slash greenhouse emissions 105,000 metric tons over 15 years.

While the cost savings and increased efficiency matter, the bit about greenhouse gas emissions reminds us that Begley still buys into the basic elements of climate alarmism. And she offers plenty of evidence that she still hasn?t abandoned other silly notions, including the ?peak oil? myth.