Changes of sea level thought to be linked with the deterioration of climate which set in in 1940 have been detected in North America, and are reported in a recent issue of the journal “Science.”

Two scientists from the Lamont Geological Observatory in New York have compared sea level records at nine stations on the eastern seaboard of the United States, and have decided that, since 1940, the sea level has been rising less quickly than in the first forty years of the center.

From the records now assembled, it appears that in the first part of this century sea level was rising at a rate of 0.7 feet in 50 years. Records kept since 1940 suggest that the increase of sea level is continuing, but at a smaller rate. This is roughly 0.4 feet in 50 years — 60 per cent of the rate observed in the first part of the century.