+.SH ENVIRONMENT
+
+The following environment variables will override those specified in
+the monkeysphere.conf configuration file (defaults in parentheses):
+.TP
+MONKEYSPHERE_LOG_LEVEL
+Set the log level (INFO). Can be SILENT, ERROR, INFO, VERBOSE, DEBUG,
+in increasing order of verbosity.
+.TP
+MONKEYSPHERE_GNUPGHOME, GNUPGHOME
+GnuPG home directory (~/.gnupg).
+.TP
+MONKEYSPHERE_KEYSERVER
+OpenPGP keyserver to use (subkeys.pgp.net).
+.TP
+MONKEYSPHERE_CHECK_KEYSERVER
+Whether or not to check keyserver when making gpg queries (`true').
+.TP
+MONKEYSPHERE_KNOWN_HOSTS
+Path to ssh known_hosts file (~/.ssh/known_hosts).
+.TP
+MONKEYSPHERE_HASH_KNOWN_HOSTS
+Whether or not to hash to the known_hosts file entries (`true').
+.TP
+MONKEYSPHERE_AUTHORIZED_KEYS
+Path to ssh authorized_keys file (~/.ssh/authorized_keys).
+