Think big, think infrastructure, think civil engineering. Civil engineers design and build some of the world’s biggest, most muscular structures, from interstate highways and bridges to dams and airports to water-treatment plants and power stations.
Coal-fired power plants are a major source of carbon dioxide, a greenhouse gas. But they continue to be built because coal remains an abundant and cheap fuel source. Still, a report from the Massachusetts Institute of Technology says that carbon dioxide emissions could be drastically cut, even with increased coal burning. The trick: Future power plants would have to capture the carbon and then sequester, or bury, it underground.
In summer 2007, four civil engineering students from the University of Dayton visited the tiny village of Barombi in Cameroon. They were just tourists for the day, on a break from service work in the nearby city of Kumba. But that all changed when the chief there told them that villagers were becoming ill and dying because the lake they depended on for drinking water was contaminated.