Washington, DC- Cost-effective climate change policies should include storage of carbon dioxide (CO2) in U.S. forests, according to a new report from the Pew Center on Global Climate Change. “Climate change is the major global environmental challenge of our time and in order to deal with it in the most cost-effective way, we need to consider the full range of solutions – and that includes carbon storage in forests,” said Eileen Claussen, President of the Pew Center on Global Climate Change. “If we ignore the potential for forest-based sequestration, any projection of the costs and feasibility of addressing climate change is going to be overly pessimistic and wrong.”
Most analyses of the climate issue have tended to focus on the implications of reducing emissions of carbon dioxide and other greenhouse gases from key industrial and transportation sources. Less attention is paid to the potential for storing (or “sequestering”) carbon in forests and other ecosystems. Both emissions reduction and carbon sequestration are important strategies for addressing climate change.
The Pew Center report, The Cost of U.S. Forest-based Carbon Sequestration, investigates the potential for incorporating land-use changes into climate policy. Authored by economists Robert Stavins of Harvard University and Kenneth Richards of Indiana University, the Pew Center report looks at the true “opportunity costs” of using land for sequestration, in contrast with other productive uses. The report also examines the many factors that drive the economics of storing carbon in forests over long periods of time.
Among the authors' key conclusions: The estimated cost of sequestering up to 500 million tons of carbon per year—an amount that would offset up to one-third of current annual U.S. carbon emissions—ranges from $30 to $90 per ton. On a per-ton basis, this is comparable to the cost estimated for other options for addressing climate change, including fuel switching and energy efficiency.
A sequestration program on the scale envisioned by the authors would involve large expanses of land and significant up-front investment. As a result, implementation would require careful attention to program design and a phased approach over a number of years. Nevertheless, the report offers new evidence that sequestration can and should play an important role in the United States' response to climate change.
“This report shows that large-scale forest-based sequestration can be a cost-effective tool which should be considered seriously by policymakers,” said the Pew Center's Claussen.
Pew is no longer active in this line of work, but for more information, visit the Center for Climate and Energy Solutions site.