diff --git a/mods/ENTITIES/mcl_dripping/init.lua b/mods/ENTITIES/mcl_dripping/init.lua
index f03ba3b24e..b5a5043b7e 100644
--- a/mods/ENTITIES/mcl_dripping/init.lua
+++ b/mods/ENTITIES/mcl_dripping/init.lua
@@ -64,14 +64,15 @@ function mcl_dripping.register_drop(def)
 		interval = def.interval,
 		chance = def.chance,
 		action = function(pos)
+			local below = minetest.get_node(vector.offset(pos,0,-1,0)).name
+			if below ~= "air" then return end
 			local r = math.ceil(def.interval / 20)
 			local nn = minetest.find_nodes_in_area(vector.offset(pos, -r, 0, -r), vector.offset(pos, r, 0, r), def.nodes)
 			--start a bunch of particle cycles to be able to get away
 			--with longer abm cycles
 			table.shuffle(nn)
 			for i = 1, math.random(#nn) do
-				if minetest.get_item_group(minetest.get_node(vector.offset(nn[i], 0, 1, 0)).name, def.liquid) ~= 0
-					and minetest.get_node(vector.offset(nn[i], 0, -1, 0)).name == "air" then
+				if minetest.get_item_group(minetest.get_node(vector.offset(nn[i], 0, 1, 0)).name, def.liquid) ~= 0 then
 					make_drop(nn[i], def.liquid, def.sound, def.interval, def.texture)
 				end
 			end
@@ -85,7 +86,7 @@ mcl_dripping.register_drop({
 	light    = 1,
 	nodes    = { "group:opaque", "group:leaves" },
 	sound    = "drippingwater_drip",
-	interval = 60,
+	interval = 60.3,
 	chance   = 10,
 })
 
@@ -95,6 +96,6 @@ mcl_dripping.register_drop({
 	light    = math.max(7, minetest.registered_nodes["mcl_core:lava_source"].light_source - 3),
 	nodes    = { "group:opaque" },
 	sound    = "drippingwater_lavadrip",
-	interval = 60,
+	interval = 110.1,
 	chance   = 10,
 })
diff --git a/mods/ENVIRONMENT/mcl_weather/snow.lua b/mods/ENVIRONMENT/mcl_weather/snow.lua
index a756c6e7f4..8de0dc0aed 100644
--- a/mods/ENVIRONMENT/mcl_weather/snow.lua
+++ b/mods/ENVIRONMENT/mcl_weather/snow.lua
@@ -153,12 +153,17 @@ minetest.register_abm({
 	neighbors = {"air"},
 	interval = 27,
 	chance = 33,
+	min_y = mcl_vars.mg_overworld_min,
 	action = function(pos, node, active_object_count, active_object_count_wider)
-		if node.name == "mcl_core:snowblock" then return end
+		if (mcl_weather.state ~= "rain" and mcl_weather.state ~= "thunder" and mcl_weather.state ~= "snow")
+		or not mcl_weather.has_snow(pos)
+		or node.name == "mcl_core:snowblock" then
+			return end
+
 		local above = vector.offset(pos,0,1,0)
 		local above_node = minetest.get_node(above)
-		if above_node.name ~= "air" then return end
-		if (mcl_weather.state == "rain" or mcl_weather.state == "thunder" or mcl_weather.state == "snow") and mcl_weather.is_outdoor(pos) and mcl_weather.has_snow(pos) then
+
+		if above_node.name == "air" and mcl_weather.is_outdoor(pos) then
 			local nn = nil
 			if node.name:find("snow") then
 				local l = node.name:sub(-1)
diff --git a/mods/ITEMS/mcl_blackstone/init.lua b/mods/ITEMS/mcl_blackstone/init.lua
index 99d168b154..00b9819f8f 100644
--- a/mods/ITEMS/mcl_blackstone/init.lua
+++ b/mods/ITEMS/mcl_blackstone/init.lua
@@ -196,12 +196,14 @@ mcl_stairs.register_stair_and_slab_simple("blackstone_brick_polished", "mcl_blac
 mcl_walls.register_wall("mcl_blackstone:wall", S("Blackstone Wall"), "mcl_blackstone:blackstone")
 
 --lavacooling
+
 minetest.register_abm({
 	label = "Lava cooling (basalt)",
 	nodenames = {"group:lava"},
 	neighbors = {"mcl_core:ice"},
 	interval = 1,
 	chance = 1,
+	min_y = mcl_vars.mg_end_min,
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		local water = minetest.find_nodes_in_area({x=pos.x-1, y=pos.y-1, z=pos.z-1}, {x=pos.x+1, y=pos.y+1, z=pos.z+1}, "mcl_core:ice")
 		local lavatype = minetest.registered_nodes[node.name].liquidtype
@@ -225,6 +227,7 @@ minetest.register_abm({
 	neighbors = {"mcl_core:packed_ice"},
 	interval = 1,
 	chance = 1,
+	min_y = mcl_vars.mg_end_min,
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		local water = minetest.find_nodes_in_area({x=pos.x-1, y=pos.y-1, z=pos.z-1}, {x=pos.x+1, y=pos.y+1, z=pos.z+1}, "mcl_core:packed_ice")
 		local lavatype = minetest.registered_nodes[node.name].liquidtype
diff --git a/mods/ITEMS/mcl_core/functions.lua b/mods/ITEMS/mcl_core/functions.lua
index f5132d74bf..5a01cd8c11 100644
--- a/mods/ITEMS/mcl_core/functions.lua
+++ b/mods/ITEMS/mcl_core/functions.lua
@@ -22,6 +22,7 @@ minetest.register_abm({
 	neighbors = {"group:water"},
 	interval = 1,
 	chance = 1,
+	min_y = mcl_vars.mg_end_min,
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		local water = minetest.find_nodes_in_area({x=pos.x-1, y=pos.y-1, z=pos.z-1}, {x=pos.x+1, y=pos.y+1, z=pos.z+1}, "group:water")
 
@@ -174,7 +175,7 @@ minetest.register_abm({
 	nodenames = {"group:destroy_by_lava_flow"},
 	neighbors = {"group:lava"},
 	interval = 1,
-	chance = 1,
+	chance = 5,
 	action = function(pos, node, active_object_count, active_object_count_wider)
 		liquid_flow_action(pos, "lava", function(pos)
 			minetest.remove_node(pos)
diff --git a/mods/ITEMS/mcl_crimson/init.lua b/mods/ITEMS/mcl_crimson/init.lua
index b225ab142f..255295aba9 100644
--- a/mods/ITEMS/mcl_crimson/init.lua
+++ b/mods/ITEMS/mcl_crimson/init.lua
@@ -236,7 +236,7 @@ minetest.register_node("mcl_crimson:warped_wart_block", {
 minetest.register_node("mcl_crimson:shroomlight", {
 	description = S("Shroomlight"),
 	tiles = {"shroomlight.png"},
-	groups = {handy = 1, hoe = 7, swordy = 1, leafdecay = 5, leaves = 1, deco_block = 1},
+	groups = {handy = 1, hoe = 7, swordy = 1, deco_block = 1},
 	light_source = minetest.LIGHT_MAX,
 	_mcl_hardness = 2,
 })
diff --git a/mods/ITEMS/mcl_fire/init.lua b/mods/ITEMS/mcl_fire/init.lua
index 79b46a7013..8827b9f9a0 100644
--- a/mods/ITEMS/mcl_fire/init.lua
+++ b/mods/ITEMS/mcl_fire/init.lua
@@ -378,9 +378,9 @@ else -- Fire enabled
 	minetest.register_abm({
 		label = "Ignite fire by lava",
 		nodenames = {"mcl_core:lava_source","mcl_nether:nether_lava_source"},
-		neighbors = {"air","group:flammable"},
-		interval = 7,
-		chance = 3,
+		neighbors = {"group:flammable"},
+		interval = 15,
+		chance = 9,
 		catch_up = false,
 		action = function(pos)
 			local p=get_ignitable_by_lava(pos)