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One of the tools for reducing the release of carbon dioxide (CO2), the largest component of greenhouse gas emissions, is carbon sequestration--the accumulation of carbon in terrestrial forms. This paper explores options to mitigate global climate change through forestry, constraints to forestry's applicability, secondary environmental and social benefits, and techniques established to monitor and verify results. Twenty-five current carbon sequestration projects are listed totaling an estimated 193 million tons of carbon at an average price of approximately $2.18 per ton. However, modeling exercises demonstrate that even the theoretical upper limit of carbon sequestration through forestry is not enough to stabilize carbon emissions in the atmosphere. Non-forestry CO2 reduction measures must be taken as well. [ABSTRACT FROM PUBLISHER]