Plenty of Atlantans spend time on highways, speeding or inching or swerving along. But many people spend a lot of time near the highways, too: at their homes, schools or workplaces. And that’s not great for their health. In addition to greenhouse gases that cause climate change, car and truck emissions have been linked to heart and lung problems. So a Georgia State University public health professor is studying how effectively trees can help filter out some of that pollution.
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