In the thirty years leading up to the Civil War, tensions in the country mounted over the issue of slavery. By 1830, there were more than 2 million slaves in the United States, worth over a ...
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Map: Rising sea levels threaten Texas coastline; solutions may cost over $12 billion.The Sea Level Rise Viewer, a data tool created by NOAA, shows a map of how coastlines would be hit by rising sea levels. A sea level rise of around 3 feet would result in receding coastlines near ...
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