Climatological stations are supposed to meet a variety of quality standards, including the relatively undemanding requirement of being 100 feet (30 meters) from paved surfaces. Anthony Watts and volunteers of surfacestations.org have documented one defective site after another, including a weather station in a parking lot at the University of Arizona where MBH coauthor Malcolm Hughes is employed, shown below. Figure 5. Tucson University of Arizona Weather StationMany more photos of idiotically sited weather measurement stations at --->> www.surfacestations.orgHere is a not-so-well maintained or well sited USHCN station: