Evening Republican, Volume 16, Number 147, Rensselaer, Jasper County, 19 June 1912 — Artificial Lakes. [ARTICLE]

Artificial Lakes.

A German investigator has found that the large artificial lakes formed for irrigation purposes or to supply water -for large cities, are not without Influence on the climate of the surrounding locality. In one instance’ that came under his notice, there has been during the. ten years since the dam was constructed and the lake formed, a decrease of 1.1 degree Fahrenheit in the average monthly difference between maximum and minimum temperatures. In the neighborhood of another lake the number of foggy days has Increased from the average of fifty-seven each year to eighty-six. The German investigator says that this increase can be assigned to no other cause than the creation of the great artificial lake and tbe consequent increased evaporation in the locality.—Popular Mechanics.