By Ian Parry
The time has come to end hand wringing on climate strategy, particularly controlling carbon dioxide (CO2) emissions. We need an approach that builds on national self-interest and spurs a race to the top in low-carbon energy solutions. Our findings here at the IMF—that carbon pricing is practical, raises revenue that permits tax reductions in other areas, and is often in countries’ own interests—should strike a chord at the United Nations Climate Summit in New York next week. Let me explain how.
Ever since the 1992 Earth Summit, policymakers have struggled to agree on an international regime for controlling emissions, but with limited success. Presently, only around 12 percent of global emissions are covered by pricing programs, such as taxes on the carbon content of fossil fuels or permit trading programs that put a price on emissions. Reducing CO2 emissions is widely seen as a classic “free-rider” problem. Why should an individual country suffer the cost of cutting its emissions when the benefits largely accrue to other countries and, given the long life of emissions and the gradual adjustment of the climate system, future generations?