The Utah State Legislature produced HJR 12, calling for the EPA to substantiate its claims about carbon dioxide. It’s the most obvious of statements, so mundane it shouldn’t even be necessary. How, you wonder, could any scientist complain about that? (What is science if its claims are not substantiated?) Nonetheless, the Utah Legislature have been criticized (and twice) by a small cadre of PhDs at Brigham Young University (BYU). Disturbingly these scientists don’t appear to have examined the empirical evidence themselves, and merely repeat the conclusions of others. Worse, their criticisms are filled with logical errors, baseless assertions and mistaken assumptions.