Ian Lange, director of the mineral and energy economics program and assistant professor of economics and business at Colorado School of Mines, was recently interviewed by China Global Television Network (CGTN) about the impact of a new U.S. tariff on imported solar panels. The solar tariff has been authorized for four years, with the rate starting at 30 percent and falling to 15 percent by Year 4. The first 2.5 gigawatts of imported solar cells will be exempted from the tariff each year.