Tracking more than 125 years of temperature changes throughout the world, this 26-second animated graphic from NASA illustrates Earth's dramatic warming in since the beginning of the "modern record" in 1880. In 2011, the Earth's average temperature was 0.92 degrees F (0.51 C) warmer than the mid-20th century baseline. The warming trend of the past 10 years exceeds the localized, temporary heat waves of previous decades.