Coal companies can be clean and remain competitive by focusing on cutting criteria pollutants like nitrogen dioxide, sulfur dioxide and the other 200-plus toxic air pollutants. Those pollutants can be controlled with available and affordable technologies, which is not the…

Once the bison’s value as an ecological curiosity increased, efforts to preserve the species became successful. Today, there are numerous bison ranches, some of which produce bison for the meat market. The National Bison Association reports that there are 450,000…