GLOBAL_WARMING_TRIGGER
	{
	POLLUTION_NEXT_TO_OCEAN		5
	POLLUTION_NEIGHBOUR_BONUS		5
	POLLUTION_MAX_BONUS			15
	POLLUTION_TILE_DESERT		25	POLLUTION_TILE_TO_PLAINS
	POLLUTION_TILE_FOREST		25	POLLUTION_TILE_TO_JUNGLE
	POLLUTION_TILE_FOREST		5	POLLUTION_TILE_TO_PLAINS
	POLLUTION_TILE_GLACIER		50	POLLUTION_TILE_TO_TUNDRA
	POLLUTION_TILE_GRASSLAND		25	POLLUTION_TILE_TO_PLAINS
	POLLUTION_TILE_GRASSLAND		5	POLLUTION_TILE_TO_FOREST
	POLLUTION_TILE_HILL			25	POLLUTION_TILE_TO_FOREST
	POLLUTION_TILE_JUNGLE		20	POLLUTION_TILE_TO_SWAMP
	POLLUTION_TILE_JUNGLE		10	POLLUTION_TILE_TO_PLAINS
	POLLUTION_TILE_MOUNTAIN		0	POLLUTION_TILE_TO_MOUNTAIN
	POLLUTION_TILE_BROWN_HILL		0	POLLUTION_TILE_TO_BROWN_HILL
	POLLUTION_TILE_BROWN_MOUNTAIN	0	POLLUTION_TILE_TO_BROWN_MOUNTAIN
	POLLUTION_TILE_WHITE_HILL		0	POLLUTION_TILE_TO_WHITE_HILL
	POLLUTION_TILE_WHITE_MOUNTAIN	0	POLLUTION_TILE_TO_WHITE_MOUNTAIN
	POLLUTION_TILE_PLAINS		25	POLLUTION_TILE_TO_GRASSLAND
	POLLUTION_TILE_PLAINS		5	POLLUTION_TILE_TO_DESERT
	POLLUTION_TILE_SWAMP		25	POLLUTION_TILE_TO_JUNGLE
	POLLUTION_TILE_SWAMP		5	POLLUTION_TILE_TO_PLAINS
	POLLUTION_TILE_TUNDRA		25	POLLUTION_TILE_TO_PLAINS
	}
