Understanding Climate

How do we know we can trust the historical surface temperature record? Did global warming stop in 1998? What actions can businesses or individuals take to reduce climate chagne from greenhouse gas emissions? Get asnwers to these and other frequently asked questions.

April 2012

  • Temperature anomaly map
    Category: 

    Record and near-record breaking temperatures dominated the eastern two-thirds of the nation and contributed to the warmest March in the contiguous United States since records began in 1895. The average temperature was 8.6 degrees above the 20th century average for March. In the past 117 years, only one month (January 2006) has ever been so much warmer than its average temperature.

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