问答题 Read the text below. Write an essay in about 120 words, in which you should summarize the key points of the text and make comments on them. Try to use your own words.
It"s been so warm in the United States this year, especially in March, that national records weren"t just broken, they were deep-fried. Temperatures in the lower 48 states were 8.6 degrees above normal for March and 6 degrees higher than average for the first three months of the year.
The magnitude of how unusual the year has been in the U.S. has alarmed some meteorologists who have warned about global warming. One climate scientist said it"s the weather equivalent of a baseball player on steroids, with old records obliterated.
"Everybody has this uneasy feeling. This is weird. This is not good," said Jerry Meehl, a climate scientist who specializes in extreme weather at the National Center for Atmospheric Research in Boulder, Colo. "It"s a guilty pleasure. You"re out enjoying this nice March weather, but you know it"s not a good thing."
Meteorologists say an unusual confluence of several weather patterns, including La Nina, was the direct cause of the warm start to 2012. While individual events can"t be blamed on global warming, Crouch said this is like the extremes that are supposed to get more frequent because of manmade climate change from the burning of fossil fuels such as coal and oil.