Science textbooks must impart to the student the ability to challenge conventional "knowledge" and not blindly accept doctrine. Attempts to eliminate information on climate non-change deprives the student of this skill. It is also important that the school textbook include information on the benefits of tobacco, on the controversy about the shape of the globe and whether the sun circles the earth or the opposite. Teach the controversy, stop the dam liberal attempt to indoctrinate the students by withholding balanced information.