In 2003, Forster and Solomon (Observations of a weekend effect in diurnal temperature range, PNAS, [ http://www.pnas.org/content/100/20/11225.full ]) reported: we find evidence of a weekly cycle in diurnal temperature range (DTR) for many stations in the United States, Mexico, Japan, and China.
The total cost to have a concrete retaining wall installed will be a combination of material and labor prices. For a basic wall you can expect to pay between $30 and $40 per square foot.
fishdamsel said: I just had two contractors out today who told me that a cement block house would cost me $100 per square foot, not including electircal, plumbing, ac,heat etc.; so their estimate was about $80,000 for 600 square foot house. What do you think? I live in Florida.