"Missouri's Magnitude 7 Metals: The Closure of a Key Aluminum Plant"
The Magnitude 7 Metals aluminum smelter in Missouri's Marston town, one of the nation's last primary aluminum smelters, is set to close, affecting over 400 jobs. The closure has sparked concerns about the local economy and national security, with efforts being made to save the smelter through legislation and appeals to the president. The plant's dependence on fossil fuels, environmental compliance issues, and energy costs are cited as contributing factors to its closure.