Guardian: Temperatures in the United States have reached record levels, making 2012 by far the hottest year in the history books.
A year of negligible winter, punishing heat waves, drought, and monster storms, such as Sandy, contributed to the record year in the continguous United States, according to a report released on Tuesday by the National Climatic Data Center.
Temperature differences are ordinarily measured by fractions of degrees, but 2012 was a full degree Fahrenheit hotter than the previous...