Niagara cataracts have frozen. This data would already be enough by themselves to give us an idea of the magnitude of the cold wave that the United States has hit during the last days. But there are more data: temperatures below -40 degrees Celsius; 21 dead people; hundreds of thousands of canceled flights; More than 5,000 million dollars in losses. The Polar Front has wreaked havoc.
However, in other places on earth it usually makes it even more cold. Much more. Recently, an investigation has determined that on August 10, 2010, in Antarctica there was a temperature of -93 degrees, a figure that supposes the lowest temperature ever registered. Much more than double than the minimums achieved in the American cold wave. But paradoxically, these -93 degrees are harmless, a scientific curiosity, while the -40 are, however, covered in the world press and reason for concern for all.
The difference, of course, are people. No one lives in Antarctica, so those very low temperatures do not matter so much. The cold matters when you cause deaths and causes damage to people. If we now leave the purely meteorological, we can draw a conclusion: where there are people less cold, but that cold can be more harmful. Let us occupy, then, that in our environment there is sufficient human heat so that no one goes cold.