Science: Retreat of the Cold

The time may come when cotton will be grown in the state of New York and corn far north in Ontario. Last week Dr. George H. T. Kimble, British-born director of the American Geographical Society, told the New York Publicity Club that the climate of the North Atlantic region is growing unmistakably warmer.

The change is most noticeable in Canada. The mean annual temperature of Montreal, said Dr. Kimble, has risen from 42°F in the 1880s to 46°F in 1950. Along the bleak natural boundary between Canada's forests and the barren Arctic, the trees are marching northward. Saplings of tamarack, spruce and...

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