Apparently, these folks don't have many bad air caves. Note that they have their cave meteorology a bit off with regard to when caves inhale/exhale depending on the outside temperature.
http://blogs.discovermagazine.com/d-brief/2017/01/16/cj-3-cave-spain-oxygen-loss/#.WH4IsrK9KK0 Jerry. jerryat...@aol.com Sent from my iPad _______________________________________________ Texascavers mailing list | http://texascavers.com Texascavers@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/ http://lists.texascavers.com/listinfo/texascavers
