Nick Cunningham is a freelance writer on oil and gas, renewable energy, climate change, energy policy and geopolitics. He is based in Pittsburgh, PA. The plan calls for 25 percent tariff on imported steel from all countries, plus a 10 percent tariff on aluminum. The announcement sent the Dow Jones Industrial Average down more than 400 points on Thursday, with the losses continuing into early trading on Friday. The tariffs on imported steel would affect a wide array of industries, from aerospace to auto manufacturing, chemicals, soft drinks and more. The costs will hit the U.S. in many ways. First, obviously, is the higher cost of steel and aluminum inputs into a wide array of products. Second, there will likely be retaliatory measures from countries around the world. “We will not sit idly while our industry is hit with unfair measures that put thousands of European jobs at risk,” […]