Posted by RN on August 14, 2015 at 10:21:55 from (205.213.104.118):
In Reply to: Re: Global warming posted by Greg1959 on August 14, 2015 at 08:21:35:
A term used is 'urban heat sink' and refers to the thermal/heat storage capability of the 'thermal mass' of the streets and buildings. A minor problem for some of the global warming activists is their 'temperatures are rising over the years and we have the tables from the weather stations to prove it'-- but seem a lot of the weather stations are in 'urban heat sinks' that have gotten a lot larger over the years and have to be adjusted a bit down for state or area average as comparison with old base line 'urban heat sink'/smaller city. The procedure to do this left up to the weather station and in most cases is admitted as 'we just guess down a degree or 2 or 3 depending on weeks final readings and who is recording them'. Raw data used by the activists doesn't have the city size adjustments and the adjusted figures are rarely seen or used by media. The Ag researchers working with outside of city fields will use adjusted figures or sometime a record of station excluding cities. NASA ahs some use for the adjusted figures and has noted the 'adjustment process' varies greatly and tries some of their own 'estimates' on raw figures- meaning they guess a different way but use the same guess for whole world's cities. Lots of scientists in the related fields agree about some global warming - but not many go along with the 'it's mans fault' activists most point to evidence from diggings that it is a cyclic phenomena more related to solar energy absorbed. Earth has had glaciers and hot spell cycles in various places and times. Farmers families can plant rice in mud flats a few centuries back and now are planting dry land winter wheat. Anazazi diggings in south west and northern Mexico show some wet times ending about 1200 give or take. European weather about that time has some ocean current flows shift and fishing getting poor off Norwegian coast so the fishermen headed south and went 'Viking' in Ireland and France, coast of England and disrupted Catholic Church and the leftovers of Roman Empire. North east Asia had some food shortages and the resulting population shifts looking for graze and other food sources led to the great Khans army travels and disruption of other empires. Now we have mid east dry spell with water fights and Southern California going back to a dry average from 400 years prior- the late 1700s to 1900s were a wet spell there. Not a big deal for mother earth with slow change of climate- but some of the 'intelligent' bipedal primates getting upset and doing primitive tribal status ritual dances and songs to get more than fair share of lesser resources. Later if historical evidence implications repeat conditions the cannibalism of the upset primates will reoccur. Have fun contemplating 100 years from now in Southern California and 'Soylent Green' reruns. RN
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