diff --git a/RELEASE b/RELEASE
index 50727f0..b78d5aa 100644
--- a/RELEASE
+++ b/RELEASE
@@ -9,12 +9,6 @@ appstream-util appdata-to-news ../data/org.freedesktop.Passim.metainfo.xml > NEW
 Update translations:
 
 ninja-build passim-pot
-cd ..
-tx push --source
-tx pull --all --force --minimum-perc=5
-cd build
-ninja-build fix-translations
-git add ../po/*.po
 
 # MAKE SURE THIS IS CORRECT
 export release_ver="0.1.6"
diff --git a/libpassim/passim-client.c b/libpassim/passim-client.c
index 9d67078..e4efccc 100644
--- a/libpassim/passim-client.c
+++ b/libpassim/passim-client.c
@@ -30,6 +30,8 @@ typedef struct {
 	gchar *version;
 	gchar *uri;
 	PassimStatus status;
+	guint64 download_saving;
+	gdouble carbon_saving;
 } PassimClientPrivate;
 
 G_DEFINE_TYPE_WITH_PRIVATE(PassimClient, passim_client, G_TYPE_OBJECT)
@@ -89,10 +91,48 @@ passim_client_get_status(PassimClient *self)
 	return priv->status;
 }
 
+/**
+ * passim_client_get_download_saving:
+ * @self: a #PassimClient
+ *
+ * Gets the total number of bytes saved from using this project.
+ *
+ * Returns: bytes
+ *
+ * Since: 0.1.6
+ **/
+guint64
+passim_client_get_download_saving(PassimClient *self)
+{
+	PassimClientPrivate *priv = GET_PRIVATE(self);
+	g_return_val_if_fail(PASSIM_IS_CLIENT(self), G_MAXUINT64);
+	return priv->download_saving;
+}
+
+/**
+ * passim_client_get_carbon_saving:
+ * @self: a #PassimClient
+ *
+ * Gets the carbon saving from using this project.
+ *
+ * Returns: kgs of CO₂e
+ *
+ * Since: 0.1.6
+ **/
+gdouble
+passim_client_get_carbon_saving(PassimClient *self)
+{
+	PassimClientPrivate *priv = GET_PRIVATE(self);
+	g_return_val_if_fail(PASSIM_IS_CLIENT(self), PASSIM_STATUS_UNKNOWN);
+	return priv->carbon_saving;
+}
+
 static void
 passim_client_load_proxy_properties(PassimClient *self)
 {
 	PassimClientPrivate *priv = GET_PRIVATE(self);
+	g_autoptr(GVariant) download_saving = NULL;
+	g_autoptr(GVariant) carbon_saving = NULL;
 	g_autoptr(GVariant) status = NULL;
 	g_autoptr(GVariant) version = NULL;
 	g_autoptr(GVariant) uri = NULL;
@@ -110,6 +150,12 @@ passim_client_load_proxy_properties(PassimClient *self)
 	status = g_dbus_proxy_get_cached_property(priv->proxy, "Status");
 	if (status != NULL)
 		priv->status = g_variant_get_uint32(status);
+	download_saving = g_dbus_proxy_get_cached_property(priv->proxy, "DownloadSaving");
+	if (download_saving != NULL)
+		priv->download_saving = g_variant_get_uint64(download_saving);
+	carbon_saving = g_dbus_proxy_get_cached_property(priv->proxy, "CarbonSaving");
+	if (carbon_saving != NULL)
+		priv->carbon_saving = g_variant_get_double(carbon_saving);
 }
 
 static void
diff --git a/libpassim/passim-client.h b/libpassim/passim-client.h
index c81aa9b..455885c 100644
--- a/libpassim/passim-client.h
+++ b/libpassim/passim-client.h
@@ -45,6 +45,10 @@ const gchar *
 passim_client_get_uri(PassimClient *self);
 PassimStatus
 passim_client_get_status(PassimClient *self);
+guint64
+passim_client_get_download_saving(PassimClient *self);
+gdouble
+passim_client_get_carbon_saving(PassimClient *self);
 gboolean
 passim_client_load(PassimClient *self, GError **error);
 GPtrArray *
diff --git a/libpassim/passim.map b/libpassim/passim.map
index 5aacf1e..53eb47a 100644
--- a/libpassim/passim.map
+++ b/libpassim/passim.map
@@ -63,6 +63,8 @@ LIBPASSIM_0.1.5 {
 
 LIBPASSIM_0.1.6 {
   global:
+    passim_client_get_carbon_saving;
+    passim_client_get_download_saving;
     passim_client_get_uri;
   local: *;
 } LIBPASSIM_0.1.5;
diff --git a/po/passim.pot b/po/passim.pot
index 82419b2..096876f 100644
--- a/po/passim.pot
+++ b/po/passim.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: passim\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-03-19 15:36+0000\n"
+"POT-Creation-Date: 2024-04-14 18:42+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -58,104 +58,114 @@ msgid "Size"
 msgstr ""
 
 #. TRANSLATORS: daemon is starting up
-#: src/passim-cli.c:267
+#: src/passim-cli.c:269
 msgid "Loading…"
 msgstr ""
 
 #. TRANSLATORS: daemon is scared to publish files
-#: src/passim-cli.c:270
+#: src/passim-cli.c:272
 msgid "Disabled (metered network)"
 msgstr ""
 
 #. TRANSLATORS: daemon is offering files like normal
-#: src/passim-cli.c:273
+#: src/passim-cli.c:275
 msgid "Running"
 msgstr ""
 
-#: src/passim-cli.c:277
+#: src/passim-cli.c:279
 msgid "Status"
 msgstr ""
 
+#. TRANSLATORS: how many bytes we did not download from the internet
+#: src/passim-cli.c:287
+msgid "Network Saving"
+msgstr ""
+
+#. TRANSLATORS: how much carbon we did not *burn* by using local data
+#: src/passim-cli.c:294
+msgid "Carbon Saving"
+msgstr ""
+
 #. TRANSLATORS: full https://whatever of the daemon
-#: src/passim-cli.c:284
+#: src/passim-cli.c:302
 msgid "URI"
 msgstr ""
 
 #. TRANSLATORS: user mistyped the command
-#: src/passim-cli.c:323 src/passim-cli.c:353
+#: src/passim-cli.c:341 src/passim-cli.c:371
 msgid "Invalid arguments"
 msgstr ""
 
 #. TRANSLATORS: now sharing to the world
-#: src/passim-cli.c:340
+#: src/passim-cli.c:358
 msgid "Published"
 msgstr ""
 
 #. TRANSLATORS: no longer sharing with the world
-#: src/passim-cli.c:360
+#: src/passim-cli.c:378
 msgid "Unpublished"
 msgstr ""
 
 #. TRANSLATORS: --version
-#: src/passim-cli.c:375
+#: src/passim-cli.c:393
 msgid "Show project version"
 msgstr ""
 
-#: src/passim-cli.c:382
+#: src/passim-cli.c:400
 msgid "Next reboot"
 msgstr ""
 
 #. TRANSLATORS: CLI action description
-#: src/passim-cli.c:397
+#: src/passim-cli.c:415
 msgid "Show daemon status"
 msgstr ""
 
 #. TRANSLATORS: CLI option example
-#: src/passim-cli.c:402
+#: src/passim-cli.c:420
 msgid "FILENAME [MAX-AGE] [MAX-SHARE]"
 msgstr ""
 
 #. TRANSLATORS: CLI action description
-#: src/passim-cli.c:404
+#: src/passim-cli.c:422
 msgid "Publish an additional file"
 msgstr ""
 
 #. TRANSLATORS: CLI option example
-#: src/passim-cli.c:409
+#: src/passim-cli.c:427
 msgid "HASH"
 msgstr ""
 
 #. TRANSLATORS: CLI action description
-#: src/passim-cli.c:411
+#: src/passim-cli.c:429
 msgid "Unpublish an existing file"
 msgstr ""
 
 #. TRANSLATORS: CLI tool description
-#: src/passim-cli.c:418
+#: src/passim-cli.c:436
 msgid "Interact with the local passimd process."
 msgstr ""
 
 #. TRANSLATORS: CLI tool name
-#: src/passim-cli.c:420
+#: src/passim-cli.c:438
 msgid "Passim CLI"
 msgstr ""
 
 #. TRANSLATORS: we don't know what to do
-#: src/passim-cli.c:424
+#: src/passim-cli.c:442
 msgid "Failed to parse arguments"
 msgstr ""
 
 #. TRANSLATORS: daemon failed to start
-#: src/passim-cli.c:432
+#: src/passim-cli.c:450
 msgid "Failed to connect to daemon"
 msgstr ""
 
 #. TRANSLATORS: CLI tool
-#: src/passim-cli.c:439
+#: src/passim-cli.c:457
 msgid "client version"
 msgstr ""
 
 #. TRANSLATORS: server
-#: src/passim-cli.c:441
+#: src/passim-cli.c:459
 msgid "daemon version"
 msgstr ""
diff --git a/src/org.freedesktop.Passim.xml b/src/org.freedesktop.Passim.xml
index be13cd4..ca142a1 100644
--- a/src/org.freedesktop.Passim.xml
+++ b/src/org.freedesktop.Passim.xml
@@ -37,6 +37,24 @@
         </doc:description>
       </doc:doc>
     </property>
+    <property name='DownloadSaving' type='t' access='read'>
+      <doc:doc>
+        <doc:description>
+          <doc:para>
+            The total number of bytes saved by using this project.
+          </doc:para>
+        </doc:description>
+      </doc:doc>
+    </property>
+    <property name='CarbonSaving' type='d' access='read'>
+      <doc:doc>
+        <doc:description>
+          <doc:para>
+            The carbon saving in kg CO₂e by using this project.
+          </doc:para>
+        </doc:description>
+      </doc:doc>
+    </property>
     <method name='GetItems'>
       <doc:doc>
         <doc:description>
diff --git a/src/passim-cli.c b/src/passim-cli.c
index 3c4a379..18ee69f 100644
--- a/src/passim-cli.c
+++ b/src/passim-cli.c
@@ -258,6 +258,8 @@ passim_cli_status(PassimCli *self, gchar **values, GError **error)
 {
 	PassimStatus status = passim_client_get_status(self->client);
 	const gchar *status_value;
+	gdouble download_saving = passim_client_get_download_saving(self->client);
+	gdouble carbon_saving = passim_client_get_carbon_saving(self->client);
 	g_autofree gchar *status_str = NULL;
 	g_autoptr(GPtrArray) items = NULL;
 
@@ -277,6 +279,22 @@ passim_cli_status(PassimCli *self, gchar **values, GError **error)
 	status_str = passim_cli_align_indent(_("Status"), status_value, PASSIM_CLI_VALIGN);
 	g_print("%s\n", status_str);
 
+	/* this is important enough to show */
+	if (download_saving > 0) {
+		g_autofree gchar *download_value = g_format_size(download_saving);
+		g_autofree gchar *download_str =
+		    /* TRANSLATORS: how many bytes we did not download from the internet */
+		    passim_cli_align_indent(_("Network Saving"), download_value, PASSIM_CLI_VALIGN);
+		g_print("%s\n", download_str);
+	}
+	if (carbon_saving > 0.001) {
+		g_autofree gchar *carbon_value = g_strdup_printf("%.02lf kg CO₂e", carbon_saving);
+		g_autofree gchar *carbon_str =
+		    /* TRANSLATORS: how much carbon we did not *burn* by using local data */
+		    passim_cli_align_indent(_("Carbon Saving"), carbon_value, PASSIM_CLI_VALIGN);
+		g_print("%s\n", carbon_str);
+	}
+
 	/* show location of the web console */
 	if (passim_client_get_uri(self->client) != NULL) {
 		g_autofree gchar *uri_str =
diff --git a/src/passim-common.c b/src/passim-common.c
index 8c5c364..8c76d91 100644
--- a/src/passim-common.c
+++ b/src/passim-common.c
@@ -14,6 +14,7 @@
 #define PASSIM_CONFIG_PORT	    "Port"
 #define PASSIM_CONFIG_PATH	    "Path"
 #define PASSIM_CONFIG_MAX_ITEM_SIZE "MaxItemSize"
+#define PASSIM_CONFIG_CARBON_COST   "CarbonCost"
 
 const gchar *
 passim_status_to_string(PassimStatus status)
@@ -71,6 +72,21 @@ passim_config_get_max_item_size(GKeyFile *kf)
 	return g_key_file_get_uint64(kf, PASSIM_CONFIG_GROUP, PASSIM_CONFIG_MAX_ITEM_SIZE, NULL);
 }
 
+gdouble
+passim_config_get_carbon_cost(GKeyFile *kf)
+{
+	gdouble carbon_cost =
+	    g_key_file_get_double(kf, PASSIM_CONFIG_GROUP, PASSIM_CONFIG_CARBON_COST, NULL);
+	if (carbon_cost < 0.00001) {
+		/* using
+		 * https://www.carbonbrief.org/factcheck-what-is-the-carbon-footprint-of-streaming-video-on-netflix/
+		 * we can see that 0.018 kg CO2e for 30 mins, where 3 GB/hr -- so this gives a
+		 * kg/GB of ~0.018 kg x (3h / 2) */
+		carbon_cost = 0.026367;
+	}
+	return carbon_cost;
+}
+
 gchar *
 passim_config_get_path(GKeyFile *kf)
 {
diff --git a/src/passim-common.h b/src/passim-common.h
index ca4bcc5..87e2e5d 100644
--- a/src/passim-common.h
+++ b/src/passim-common.h
@@ -16,6 +16,8 @@ guint16
 passim_config_get_port(GKeyFile *kf);
 gsize
 passim_config_get_max_item_size(GKeyFile *kf);
+gdouble
+passim_config_get_carbon_cost(GKeyFile *kf);
 gchar *
 passim_config_get_path(GKeyFile *kf);
 gboolean
diff --git a/src/passim-server.c b/src/passim-server.c
index 500ca9f..7341869 100644
--- a/src/passim-server.c
+++ b/src/passim-server.c
@@ -33,6 +33,7 @@ typedef struct {
 	guint owner_id;
 	guint poll_item_age_id;
 	guint timed_exit_id;
+	guint64 download_saving;
 	PassimStatus status;
 } PassimServer;
 
@@ -164,10 +165,88 @@ passim_server_avahi_register(PassimServer *self, GError **error)
 	return TRUE;
 }
 
+static gchar *
+passim_server_get_logdir(void)
+{
+	const gchar *logs_directory = g_getenv("LOGS_DIRECTORY");
+	if (logs_directory != NULL)
+		return g_strdup(logs_directory);
+	return g_build_filename(PACKAGE_LOCALSTATEDIR, "log", PACKAGE_NAME, NULL);
+}
+
+static gboolean
+passim_server_update_download_saving_arg(PassimServer *self, const gchar *arg, GError **error)
+{
+	g_auto(GStrv) kvs = g_strsplit(arg, "=", -1);
+	if (g_strcmp0(kvs[0], "size") == 0) {
+		guint64 value = g_ascii_strtoull(kvs[1], NULL, 10);
+		if (value != G_MAXUINT64 && value != 0)
+			self->download_saving += value;
+	}
+	return TRUE;
+}
+
+static gboolean
+passim_server_update_download_saving_args(PassimServer *self, const gchar *args, GError **error)
+{
+	g_auto(GStrv) sections = g_strsplit(args, ",", -1);
+	for (guint i = 0; sections[i] != NULL; i++) {
+		if (!passim_server_update_download_saving_arg(self, sections[i], error))
+			return FALSE;
+	}
+	return TRUE;
+}
+
+static gboolean
+passim_server_update_download_saving(PassimServer *self, GError **error)
+{
+	g_autofree gchar *filename = NULL;
+	g_autofree gchar *path = NULL;
+	g_autoptr(GDataInputStream) dstream = NULL;
+	g_autoptr(GError) error_local = NULL;
+	g_autoptr(GFile) file = NULL;
+	g_autoptr(GFileInputStream) istream = NULL;
+
+	/* open file for reading */
+	path = passim_server_get_logdir();
+	filename = g_build_filename(path, "audit.log", NULL);
+	file = g_file_new_for_path(filename);
+	istream = g_file_read(file, NULL, &error_local);
+	if (istream == NULL) {
+		if (g_error_matches(error_local, G_IO_ERROR, G_IO_ERROR_NOT_FOUND))
+			return TRUE;
+		g_propagate_error(error, g_steal_pointer(&error_local));
+		return FALSE;
+	}
+	dstream = g_data_input_stream_new(G_INPUT_STREAM(istream));
+
+	/* read each line */
+	do {
+		g_autofree gchar *str = NULL;
+		g_autoptr(GError) error_line = NULL;
+		g_auto(GStrv) sections = NULL;
+
+		str = g_data_input_stream_read_line_utf8(dstream, NULL, NULL, &error_line);
+		if (str == NULL && error_line != NULL) {
+			g_propagate_error(error, g_steal_pointer(&error_line));
+			return FALSE;
+		}
+		if (str == NULL)
+			break;
+		sections = g_strsplit(str, " ", -1);
+		if (g_strv_length(sections) >= 3 && g_strcmp0(sections[1], "SHARE") == 0) {
+			if (!passim_server_update_download_saving_args(self, sections[2], error))
+				return FALSE;
+		}
+	} while (1);
+
+	/* success */
+	return TRUE;
+}
+
 static gboolean
 passim_server_eventlog(PassimServer *self, const gchar *type, const gchar *value, GError **error)
 {
-	const gchar *logs_directory = g_getenv("LOGS_DIRECTORY");
 	g_autofree gchar *filename = NULL;
 	g_autofree gchar *line = NULL;
 	g_autofree gchar *path = NULL;
@@ -177,11 +256,7 @@ passim_server_eventlog(PassimServer *self, const gchar *type, const gchar *value
 	g_autoptr(GFileOutputStream) ostream = NULL;
 
 	/* create logdir */
-	if (logs_directory == NULL) {
-		path = g_build_filename(PACKAGE_LOCALSTATEDIR, "log", PACKAGE_NAME, NULL);
-	} else {
-		path = g_strdup(logs_directory);
-	}
+	path = passim_server_get_logdir();
 	if (!passim_mkdir(path, error))
 		return FALSE;
 
@@ -902,6 +977,9 @@ passim_server_handler_cb(SoupServer *server,
 		}
 		passim_server_msg_send_item(self, msg, item);
 
+		/* update counter */
+		self->download_saving += passim_item_get_size(item);
+
 		/* log */
 		passim_server_append_str(event_msg, "hash", passim_item_get_hash(item));
 		passim_server_append_str(event_msg, "basename", passim_item_get_basename(item));
@@ -1280,6 +1358,15 @@ passim_server_method_call(GDBusConnection *connection,
 					      method_name);
 }
 
+static gdouble
+passim_server_get_carbon_saving(PassimServer *self)
+{
+	gdouble val = self->download_saving;
+	/* convert both to MB */
+	val *= passim_config_get_carbon_cost(self->kf) / 1024;
+	return val / 0x100000L;
+}
+
 static GVariant *
 passim_server_get_property(GDBusConnection *connection_,
 			   const gchar *sender,
@@ -1295,6 +1382,10 @@ passim_server_get_property(GDBusConnection *connection_,
 		return g_variant_new_string(SOURCE_VERSION);
 	if (g_strcmp0(property_name, "Status") == 0)
 		return g_variant_new_uint32(self->status);
+	if (g_strcmp0(property_name, "DownloadSaving") == 0)
+		return g_variant_new_uint64(self->download_saving);
+	if (g_strcmp0(property_name, "CarbonSaving") == 0)
+		return g_variant_new_double(passim_server_get_carbon_saving(self));
 	if (g_strcmp0(property_name, "Uri") == 0) {
 		g_autofree gchar *uri = g_strdup_printf("https://localhost:%u/", self->port);
 		return g_variant_new_string(uri);
@@ -1569,6 +1660,12 @@ main(int argc, char *argv[])
 	}
 	self->status = PASSIM_STATUS_LOADING;
 
+	/* update total shared so far */
+	if (!passim_server_update_download_saving(self, &error)) {
+		g_warning("failed to read log: %s", error->message);
+		return 1;
+	}
+
 	/* register objects with Avahi */
 	if (!passim_server_avahi_register(self, &error)) {
 		g_warning("failed to register: %s", error->message);