Argus Leader: Climate change legislation that Congress is expected to take up later this month would raise energy prices for millions of Americans; there’s little dispute about that. The issue for South Dakota lawmakers is how it should be crafted to reduce the pain to state pocketbooks. President Obama and congressional leaders are focusing on a plan dubbed “cap and trade,” which by 2020 would cut greenhouse gases that cause global warming to 20 percent below 2005 levels. Companies, particularly …