diff --git a/changelog.txt b/changelog.txt
index 032c6e0..860c4a5 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,12 @@
 ---------------------------------------------------------------------------------------------------
+Version: 0.1.13
+Date: 2024-01-13
+  Changes:
+    - SE: Natural gas has pollution value of 1.1 (up from 0.75) to balance between pure methane
+      and petroleum gas.
+  Localization:
+    - Add pl, thanks to S3BA
+---------------------------------------------------------------------------------------------------
 Version: 0.1.12
 Date: 2023-12-24
   Features:
diff --git a/data-util.lua b/data-util.lua
index 6f24821..0c58ecd 100644
--- a/data-util.lua
+++ b/data-util.lua
@@ -173,7 +173,7 @@ function util.k2matter(params)
               },
               time = 45,
             },
-            localised_name = {"technology-name.k2-conversion", {"item-name."..params.k2matter.item_name}},
+            -- (ignore for now) localised_name = {"technology-name.k2-conversion", {"item-name."..params.k2matter.item_name}},
           },
         })
   end
diff --git a/info.json b/info.json
index 75e529d..ed1ef1b 100644
--- a/info.json
+++ b/info.json
@@ -1,6 +1,6 @@
 {
     "name": "bzgas",
-    "version": "0.1.12",
+    "version": "0.1.13",
     "factorio_version": "1.1",
     "title": "Natural Gas",
     "author": "Brevven",
diff --git a/prototypes/gas.lua b/prototypes/gas.lua
index 2830faf..1547738 100644
--- a/prototypes/gas.lua
+++ b/prototypes/gas.lua
@@ -132,7 +132,7 @@ data:extend({
     default_temperature = 25,
     heat_capacity = "0.1KJ",
     fuel_value = "1000KJ",
-    emissions_multiplier = 0.75,
+    emissions_multiplier = util.se6() and 1.1 or 0.75,
     base_color = {r=0.67, g=0.87, b=0.77},
     flow_color = {r=0.67, g=0.87, b=0.87},
     icon =  "__bzgas__/graphics/icons/gas.png",