Because they are farther north than the US.
The answer is the mercator, which is a cylindrical map projection.
The idea of global cooling gained popularity about during the 1970s, <span>“There are ominous signs that the earth’s weather patterns have begun to change dramatically,” </span>Newsweek reported in 1975. At the time the highly influential source convinced <span>“drastic decline in food production.”, at that time climate scientists were convinced that a ice age was coming. Global temperatures falling between 1940 to 1975 drove the concern of global cooling, little did they know it was only a temporary fall of temperature.
That's as much as I know, hope it helped! :)</span>
The correct answer is letter C