The principle holding that in a warm-blooded, polytypic, wide-ranging animal species, the body size of the members of each geographic group varies with the average environmental temperature.
The most obvious reason is that, despite a marked warming over the course of the 20th century, temperatures have not really risen over the past ten years.
A spokesman for the state's department of transportation said he was seriously concerned about every road last night, with ice expected to form as temperatures dropped below freezing.
If they all stepped outside at once more than 224 million people would have felt it and over the next couple days temperatures are expected to stay that way for most of the country.
This week in Chicago, Illinois temperatures dropped down to 25 degrees below zero Fahrenheit but by the end of the weekend, the city's expected to see temperatures rise by 75 degrees to the low 50's.
While several states west of the Rocky Mountains recently saw colder than average conditions, much of America east of the Rockies has seen severe storms, flooding and a scorching heat wave.
Atlit-Yam may have been destroyed swiftly by a tsunami, or climate change may have caused glaciers to melt and sea levels to rise, flooding the village gradually.