anchor.diff:  	var/interactions_with_unsim = 0
   	var/progress = "nothing"
   
  +
  +/datum/gas_mixture/zone
  +	Del()
  +		CRASH("Something tried to delete a zone's air!")
  +		. = ..()
   
   //CREATION AND DELETION
   /zone/New(turf/start)
  
positive.code: 			C.A.zone = null
  		if(C.B.zone == src)
  			C.B.zone = null
  	direct_connections = null
  
  	//Ensuring the zone list doesn't get clogged with null values.
  
negative.code: 
  	//Generate the gas_mixture for use in txhis zone by using the average of the gases
  	//defined at startup.
  	//Changed to try and find the source of the error.
  	air = new /datum/gas_mixture/zone()
  	air.group_multiplier = contents.len
  	for(var/turf/simulated/T in contents)
  		if(!T.air)
  