Environmental Protection

Engineering Societies Join Forces to Manage Emissions

The leaders of five societies have developed a Web site for collaboration (www.aiche.org/FSCarbonMgmt/) and scorecards for benchmarking carbon management alternatives.

The scorecards are part of an effort to assess the merits of different carbon management technologies, to identify barriers to technology deployment, and to address gaps and barriers to measuring and verifying carbon emissions.

The societies participating are the American Institute of Chemical Engineers (AIChE), the American Institute of Mining, Metallurgical, and Petroleum Engineers; the American Society of Civil Engineers; the American Society of Mechanical Engineers; and the Institute of Electrical and Electronics Engineers.

The scorecards developed so far focus on electric power and transportation systems, with expansion to other sectors planned. Dale L. Keairns, past president of AIChE, who serves as chair of the group, said that these two areas were selected for the first scorecards because “together they emit more than 4 billion metric tons of carbon dioxide a year—about 70 percent of total emissions in the U.S.”

The scorecards employ an A, B, C, D and F grading system. The electric power scorecard charts a variety of power sources, including coal (with and without carbon capture and sequestration), natural gas, petroleum, nuclear, renewables (solar, wind, biomass, and tidal energy) by emission per kilowatt hour, emission per generated kilowatt, and total greenhouse gas emissions per unit, among other attributes. The transportation scorecard rates vehicular, air, and rail transportation systems, using traditional and new fuel sources and technologies, by carbon emissions, miles traveled, availability, safety, impact on land and water use, and air quality issues.

Keairns said the overall goal of the engineers’ effort, underwritten by the United Engineering Foundation, is to ensure that “engineers, educators, the general public, and policy makers have the best-available information, and sound engineering advice and recommendations” for managing greenhouse gases.

“Stabilizing and reducing greenhouse gas emissions requires involvement from a broad range of industries, technologies and disciplines,” Keairns commented. “The participating societies bring together the expertise of engineers along the entire supply chain of energy, from extraction to use, including the development and use of next generation technologies,” he said. He also pointed out, given the importance of incorporating global developments into carbon management, that the societies have international reach and membership.

The engineers see that controlling carbon emissions from energy generation requires a long-term perspective. Unfortunately, the energy challenge has tended to receive only short-term attention when fossil fuel prices are high or when there are disruptions or shortages in supplies. They believe that this lack of long-term commitment and focus is no longer acceptable. “The need for energy security and for economically and environmentally sustainable energy systems is extremely serious and must be ongoing,” Keairns said.

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