Earth Equity News

Cap-and-Trade Creators Prefer Carbon Tax for Controlling Greenhouse Emissions. By Jon Hilsenrath, WSJournal, August 13, 2009. "In the 1960s, a University of Wisconsin graduate student named Thomas Crocker came up with a novel solution for environmental problems: cap emissions of pollutants and then let firms trade permits that allow them to pollute within those limits. Now legislation using cap-and-trade to limit greenhouse gases is working its way through Congress and could become the law of the land. But Mr. Crocker and other pioneers of the concept are doubtful about its chances of success. They aren't abandoning efforts to curb emissions. But they are tiptoeing away from an idea they devised decades ago, doubting it can work on the grand scale now envisioned. 'I'm skeptical that cap-and-trade is the most effective way to go about regulating carbon,' says Mr. Crocker, 73 years old, a retired economist in Centennial, Wyo. He says he prefers an outright tax on emissions because it would be easier to enforce and provide needed flexibility to deal with the problem...

"Mr. Crocker, who went on to become a professor at the University of Wyoming, is one of two economists who dreamed up cap-and-trade in the 1960s. The other, John Dales, who died in 2007, was also a skeptic of using the idea to tame global warning. 'It isn't a cure-all for everything,' Mr. Dales said in an interview in 2001. 'There are lots of situations that don't apply'... Another economist, David Montgomery, advanced their ideas in the 1970s, converting their theories into the complex mathematical formulas to demonstrate that they weren't merely an idea but were also economically feasible. Mr. Montgomery, too, is a skeptic of cap-and-trade for greenhouse gases. He prefers an outright tax.

"Mr. Crocker sees two modern-day problems in using a cap-and-trade system to address the global greenhouse-gas issue. The first is that carbon emissions are a global problem with myriad sources. Cap-and-trade, he says, is better suited for discrete, local pollution problems. 'It is not clear to me how you would enforce a permit system internationally,' he says. 'There are no institutions right now that have that power'... The other problem, Mr. Crocker says, is that quantifying the economic damage of climate change -- from floods to failing crops -- is fraught with uncertainty. One estimate puts it at anywhere between 5% and 20% of global gross domestic product. Without knowing how costly climate change is, nobody knows how tight a grip to put on emissions."