diff --git a/doc/man/man3/notcurses_direct.3.md b/doc/man/man3/notcurses_direct.3.md
index 0268014a0..b36b5e017 100644
--- a/doc/man/man3/notcurses_direct.3.md
+++ b/doc/man/man3/notcurses_direct.3.md
@@ -185,6 +185,9 @@ The following flags are defined:
 * **NCDIRECT_OPTION_VERY_VERBOSE**: Enable all diagnostics (equivalent to
     **NCLOGLEVEL_TRACE**). Implies **NCDIRECT_OPTION_VERBOSE**.
 
+The loglevel can also be set externally using the **NOTCURSES_LOGLEVEL**
+environment variable. See **notcurses_init(3)** for more information.
+
 An appropriate **terminfo(5)** entry must exist for the terminal. This entry is
 usually selected using the value of the **TERM** environment variable (see
 **getenv(3)**), but a non-**NULL** value for **termtype** will override this. An
@@ -254,6 +257,7 @@ mapping them to **NCDIRECT_OPTION_VERBOSE** and
 
 **getenv(3)**,
 **notcurses(3)**,
+**notcurses_init(3)**,
 **notcurses_plane(3)**,
 **notcurses_visual(3)**,
 **terminfo(5)**,
diff --git a/doc/man/man3/notcurses_init.3.md b/doc/man/man3/notcurses_init.3.md
index 5ba5501ac..cb12cf053 100644
--- a/doc/man/man3/notcurses_init.3.md
+++ b/doc/man/man3/notcurses_init.3.md
@@ -224,6 +224,16 @@ rendered mode to be used as a normal scrolling shell application.
 
 **notcurses_cursor_disable** returns -1 if the cursor is already invisible.
 
+# ENVIRONMENT VARIABLES
+
+The **NOTCURSES_LOGLEVEL** environment variable, if defined, ought be an
+integer between -1 and 7. These values correspond to **NCLOGLEVEL_SILENT**
+through **NCLOGLEVEL_TRACE**, and override the **loglevel** field of
+**notcurses_options**.
+
+The **TERM** environment variable will be used by **setupterm(3ncurses)** to
+select an appropriate terminfo database.
+
 # NOTES
 
 Several command-line options and keybindings are recommended for Notcurses
@@ -246,5 +256,6 @@ rendered-mode programs:
 **notcurses_refresh(3)**,
 **notcurses_render(3)**,
 **notcurses_stop(3)**,
+**setupterm(3ncurses)**,
 **terminfo(5)**,
 **signal(7)**