The degree symbol (`deg') has an incorrect HTML entity in org-entities.el.
Ulf
diff --git a/lisp/org-entities.el b/lisp/org-entities.el
index 609173a..c6ace61 100644
--- a/lisp/org-entities.el
+++ b/lisp/org-entities.el
@@ -304,7 +304,7 @@ loaded, add these packages to `org-export-latex-packages-alist'."
("prod" "\\prod" t "∏" "[product]" "[n-ary product]" "∏")
("micro" "\\textmu{}" nil "µ" "micro" "µ" "µ")
("macr" "\\textasciimacron{}" nil "¯" "[macron]" "¯" "¯")
- ("deg" "\\textdegree{}" nil "deg" "degree" "°" "°")
+ ("deg" "\\textdegree{}" nil "°" "degree" "°" "°")
("prime" "\\prime" t "′" "'" "'" "′")
("Prime" "\\prime{}\\prime" t "″" "''" "''" "″")
("infin" "\\propto" t "∞" "[infinity]" "[infinity]" "∞")