diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index 7bcfd3b2..01f68ae1 100644
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -335,7 +335,7 @@ function default.register_biomes()
 		node_river_water = "default:ice",
 		y_min = -8,
 		y_max = 31000,
-		heat_point = 5,
+		heat_point = 0,
 		humidity_point = 50,
 	})
 
@@ -353,7 +353,7 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = -112,
 		y_max = -9,
-		heat_point = 5,
+		heat_point = 0,
 		humidity_point = 50,
 	})
 
@@ -361,7 +361,7 @@ function default.register_biomes()
 
 	minetest.register_biome({
 		name = "tundra",
-		node_dust = "default:snow",
+		--node_dust = "",
 		node_top = "default:dirt_with_snow",
 		depth_top = 1,
 		node_filler = "default:dirt",
@@ -374,7 +374,7 @@ function default.register_biomes()
 		y_min = 2,
 		y_max = 31000,
 		heat_point = 15,
-		humidity_point = 30,
+		humidity_point = 35,
 	})
 
 	minetest.register_biome({
@@ -392,17 +392,17 @@ function default.register_biomes()
 		y_min = -112,
 		y_max = 1,
 		heat_point = 15,
-		humidity_point = 30,
+		humidity_point = 35,
 	})
 
 
 	minetest.register_biome({
 		name = "taiga",
 		node_dust = "default:snow",
-		node_top = "default:snowblock",
+		node_top = "default:dirt_with_snow",
 		depth_top = 1,
 		node_filler = "default:dirt",
-		depth_filler = 4,
+		depth_filler = 3,
 		--node_stone = "",
 		--node_water_top = "",
 		--depth_water_top = ,
@@ -411,7 +411,7 @@ function default.register_biomes()
 		y_min = 2,
 		y_max = 31000,
 		heat_point = 15,
-		humidity_point = 70,
+		humidity_point = 65,
 	})
 
 	minetest.register_biome({
@@ -429,7 +429,7 @@ function default.register_biomes()
 		y_min = -112,
 		y_max = 1,
 		heat_point = 15,
-		humidity_point = 70,
+		humidity_point = 65,
 	})
 
 	-- Temperate
@@ -448,8 +448,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = 5,
 		y_max = 31000,
-		heat_point = 45,
-		humidity_point = 30,
+		heat_point = 40,
+		humidity_point = 35,
 	})
 
 	minetest.register_biome({
@@ -466,8 +466,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = -112,
 		y_max = 4,
-		heat_point = 45,
-		humidity_point = 30,
+		heat_point = 40,
+		humidity_point = 35,
 	})
 
 
@@ -485,8 +485,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = 5,
 		y_max = 31000,
-		heat_point = 45,
-		humidity_point = 70,
+		heat_point = 40,
+		humidity_point = 65,
 	})
 
 	minetest.register_biome({
@@ -503,8 +503,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = -112,
 		y_max = 4,
-		heat_point = 45,
-		humidity_point = 70,
+		heat_point = 40,
+		humidity_point = 65,
 	})
 
 
@@ -522,8 +522,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = 5,
 		y_max = 31000,
-		heat_point = 55,
-		humidity_point = 30,
+		heat_point = 60,
+		humidity_point = 35,
 	})
 
 	minetest.register_biome({
@@ -540,8 +540,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = -112,
 		y_max = 4,
-		heat_point = 55,
-		humidity_point = 30,
+		heat_point = 60,
+		humidity_point = 35,
 	})
 
 
@@ -559,8 +559,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = 1,
 		y_max = 31000,
-		heat_point = 55,
-		humidity_point = 70,
+		heat_point = 60,
+		humidity_point = 65,
 	})
 
 	minetest.register_biome({
@@ -577,8 +577,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = -3,
 		y_max = 0,
-		heat_point = 55,
-		humidity_point = 70,
+		heat_point = 60,
+		humidity_point = 65,
 	})
 
 	minetest.register_biome({
@@ -595,8 +595,8 @@ function default.register_biomes()
 		--node_river_water = "",
 		y_min = -112,
 		y_max = -4,
-		heat_point = 55,
-		humidity_point = 70,
+		heat_point = 60,
+		humidity_point = 65,
 	})
 
 	-- Hot
@@ -616,7 +616,7 @@ function default.register_biomes()
 		y_min = 5,
 		y_max = 31000,
 		heat_point = 85,
-		humidity_point = 10,
+		humidity_point = 20,
 	})
 
 	minetest.register_biome({
@@ -634,7 +634,7 @@ function default.register_biomes()
 		y_min = -112,
 		y_max = 4,
 		heat_point = 85,
-		humidity_point = 10,
+		humidity_point = 20,
 	})
 
 
@@ -708,7 +708,7 @@ function default.register_biomes()
 		y_min = 1,
 		y_max = 31000,
 		heat_point = 85,
-		humidity_point = 90,
+		humidity_point = 80,
 	})
 
 	minetest.register_biome({
@@ -726,7 +726,7 @@ function default.register_biomes()
 		y_min = -3,
 		y_max = 0,
 		heat_point = 85,
-		humidity_point = 90,
+		humidity_point = 80,
 	})
 
 	minetest.register_biome({
@@ -744,7 +744,7 @@ function default.register_biomes()
 		y_min = -112,
 		y_max = -4,
 		heat_point = 85,
-		humidity_point = 90,
+		humidity_point = 80,
 	})
 
 	-- Underground