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Carbon Sequestration in Global Forests Under Different Carbon Price Regimes

Brent Sohngen and Roger Sedjo

Year: 2006
Volume: Multi-Greenhouse Gas Mitigation and Climate Policy
Number: Special Issue #3
DOI: 10.5547/ISSN0195-6574-EJ-VolSI2006-NoSI3-6
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Abstract:
This paper examines the potential role of carbon sequestration in forests under a range of exogenously chosen carbon price paths. The price paths were chosen to simulate several different climate change policies. The results indicate that global sequestration could range from 48�147 Pg C by 2105 for carbon prices ranging from $100 to more than $800 per t C by the end of the century. The timing of sequestration is found to be sensitive to the assumed carbon price path. Low initial carbon prices ($10 - $20 per t C in 2010) followed by rapid price increases, as might occur if policy makers try to stabilize future concentrations, suggest little, if any, sequestration during the next 20 years (-0.2 to 4.5 Pg C). If policy makers develop policies that support higher initial carbon prices, ranging from $75 to $100 per t C, 17 to 23 Pg C could be sequestered in forests over the next 20 years. Overall, our results indicate that forestry is not an efficient stopgap measure for long-term policy goals, but that it is instead an important long-term partner with other mitigation options.



GHG Mitigation Potential, Costs and Benefits in Global Forests: A Dynamic Partial Equilibrium Approach

Jayant Sathaye, Willy Makundi, Larry Dale, Peter Chan, and Kenneth Andrasko

Year: 2006
Volume: Multi-Greenhouse Gas Mitigation and Climate Policy
Number: Special Issue #3
DOI: 10.5547/ISSN0195-6574-EJ-VolSI2006-NoSI3-7
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Abstract:
This paper reports on the global potential for carbon sequestration in forest plantations, and the reduction of carbon emissions from deforestation, in response to six carbon price scenarios from 2000 to 2100. These carbon price scenarios cover a range typically seen in global integrated assessment models. The world forest sector was disaggregated into ten regions, four largely temperate, developed regions: the European Union, Oceania, Russia, and the United States; and six developing, mostly tropical, regions: Africa, Central America, China, India, Rest of Asia, and South America. Three mitigation options�long-and short-rotation forestry, and the reduction of deforestation�were analyzed using a global dynamic partial equilibrium model (GCOMAP). Key findings of this work are that cumulative carbon gain ranges from 50.9 to 113.2 Gt C by 2100, higher carbon prices early lead to earlier carbon gain and vice versa, and avoided deforestation accounts for 51 to 78% of modeled carbon gains by 2100. The estimated present value of cumulative welfare change in the sector ranges from a decline of $158 billion to a gain of $81 billion by 2100. The decline is associated with a decrease in deforestation.



Fossil Fuel Subsidy Inventories vs. Net Carbon Prices

Jens Böhm and Sonja Peterson

Year: 2024
Volume: Volume 45
Number: Number 4
DOI: 10.5547/01956574.45.4.jboh
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Abstract:
Price incentives for reducing fossil fuel related carbon emissions are an important component of effective and efficient climate policy. Current incentives stem from a mixture of energy taxes and carbon pricing (incentivizing less emissions) and diverse support measures for fossil fuels (incentivizing more emissions). We develop a net carbon price indicator that complements existing subsidy and carbon pricing indicators. It can be calculated on different aggregation levels and compared across countries. We calculate the different components and our aggregate indicator for the year 2018 and for eight countries including the worlds' six largest emitters. Our analysis reveals large differences in net carbon prices across countries and across sectors within countries. We argue that the sectoral differences can inform about adequate national policy reforms while the aggregate national indicator can be useful for international negotiations about comparable national efforts.





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