Climate Policy

The pace of activity around climate change legislation picked up noticeably in 2007. The increased focus brought new legislative proposals to reduce greenhouse gas emissions. These bills include cap-and-trade systems, and carbon taxes as well as energy bills that promote energy efficiency or renewables. The cap-and-trade bills generally engage agriculture through a credit system. The carbon tax bills generally defer decisions on how to include nonenergy emissions. In this article we argue that these activities can be brought into a carbon pricing system similarly to energy related emissions.

© 2008 Choices

About the book: The European Union's Emissions Trading Scheme (EU ETS) is the world's largest market for carbon and the most significant multinational initiative ever taken to mobilize markets to protect the environment. It will be an important influence on the development and implementation of trading schemes in the US, Japan, and elsewhere. However, as is true of any pioneering public policy experiment, this scheme has generated much controversy. Pricing Carbon provides the first detailed description and analysis of the EU ETS, focusing on the first 'trial' period of the scheme (2005-7). Written by an international team of experts, it allows readers to get behind the headlines and come to a better understanding of what was done and what happened based on a dispassionate, empirically based review of the evidence. This book should be read by anyone who wants to know what happens when emissions are capped, traded, and priced.

Publisher's Link to Book

Op-Ed: E.U. Greenhouse Gas Plan: Better Than It Sounds by A. Denny Ellerman (Forbes.com, March 18, 2010)

Climate policy regarding perfluorocarbons (PFCs) may have a significant influence on investment decisions in the production of primary aluminum. This work demonstrates an integrated analysis of the effectiveness and likely economic consequences of different climate policy options. In our study we first compare atmospheric observations to the available estimates of PFC emissions for the baseline years 1990 and 1995. We then present projections for regional emissions of PFCs from the aluminum industry using the MIT Emissions Projection and Policy Analysis model under different policy scenarios. Abatement costs for emissions of PFCs and CO2 are compared in the context of the Kyoto Protocol.

We provide a set of three emissions scenarios with known probability characteristics generated using an uncertainty technique known as the deterministic equivalent modeling method (DEMM), which requires distributions for uncertain parameter inputs and then uses a statistical sampling technique to generate parameter sets, and the MIT Emissions Prediction and Policy Analysis (EPPA) model. Emissions of CO2, CH4, N2O, SF6, PFC, HFC, NOx, SOx, CO, NMVOC, NH3 and carbonaceous particulates from 1995 through 2100 at 5 year intervals are provided on a 1° by 1° latitude-longitude grid. These scenarios do not include emissions from natural sources or sinks of carbon, other GHGs, or other substances. They include emissions of carbon and other substances from land use change (deforestation) and agriculture (waste burning, livestock, rice production, soils) but do not include carbon sinks due to forest regrowth. The scenarios were selected by chosing parameter sets that produced the median (50 percentile value) and 97.5 percentile value (upper) and 2.5 percentile value (lower) limit for CO2 emissions in 2100 (i.e. a range covering 95 percent of the distribution). Conditional on these values, we then chose parameter sets that produced 50 percentile values for each of the other emissions. This scenario selection design was chosen so that the resulting scenarios are approximately 2.5, 50, 97.5 percentile outcomes yet retain the characteristic that the scenarios for all substances are the result of internally consistent scenarios given the structure of the EPPA model.

This paper uses the Edmonds-Reilly model to explore an alternative approach for using energy- economic- environmental models when analysing future CO2 emissions. This approach - conducting probabilistic policy experiments - can be used to investigate the effectiveness of various policy options in the context of uncertainty. The analysis builds on work by Nordhaus and Yohe (1983) and Edmonds et al. (1986). A key feature of using a probabilistic approach is that it offers both analysts and policy- makers an opportunity to move away from arguing about which scenario is the 'right', best-guess scenario, and towards a discussion of which strategies are effective across an wide range of possible futures. This paper both develops a methodology for conducting probabilistic policy experiments and presents the results of five preliminary experiments using this approach.

© 1995 Inderscience Enterprises Limited

Natural gas will be more important than the Kyoto Protocol to coal's future. How, and whether, this ambitious international agreement is implemented will significantly affect coal's prospects. But the more important feature of coal's future is likely to be the possibility for displacement by other fuels, specifically natural gas, whose recent expansion is due far more to its newly found abundance than to its touted environmental attributes. Natural gas enjoys an ease of handling and environmental attributes that give it clear advantages in relatively small-scale uses typical of households, commercial establishments and general industry. Coal's only advantage is price. Low cost is not an insignificant advantage, but it is a relative one that depends as much on the competing fuel as it does on coal. Therein lies a threat, no less serious but more real than the prospects for meaningful implementation of the Kyoto Protocol.

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