W What's up Guest Jan 15, 2009 #1 what do they measure. do they measure in the same spot. do they get the average temps for all major cities for one year or something. how do they know global temps are rising. surely they can't measure very place?
what do they measure. do they measure in the same spot. do they get the average temps for all major cities for one year or something. how do they know global temps are rising. surely they can't measure very place?
P peter.jungmann Guest Jan 15, 2009 #2 www.surfacestations.org They take these readings and accept them as true.
