One result of debates over the meaning and validity of the concept of race is that the current literature across different disciplines regarding human variation lacks <answer>consensus</answer>, though within some fields, such as some branches of anthropology, there is strong <answer>consensus</answer>. Some studies use the word race in its early essentialist taxonomic sense. Many others still use the term race, but use it to mean a population, clade, or haplogroup. Others eschew the concept of race altogether, and use the concept of population as a less problematic unit of analysis.
What does the current literature regarding human variation lack?
consensus