Georgia: Coal and Carbon
Coal generates carbon dioxide when combusted, which is causing the world to warm. In Georgia, a state that gets over 60 percent of its electricity from coal, some coastal residents are connecting the dots between coal and changes in the local ecology and economy attributed to global warming. Recognizing the need to reduce carbon dioxide emissions, engineers are exploring "clean coal" technology. What is this technology? Will it work?
Iowa: Corn and Climate
Congress helped bolster the corn ethanol business in Iowa by mandating the Renewable Fuel Standard in 2005. But scientists are concerned about the unexpected consequences of putting more of Iowa's land into corn production—consequences that may make corn ethanol a bigger source of climate—warming gases than regular gasoline.
