Scientists at NASA have produced a visualization that depicts the recent rise in global temperatures as felt over a span of 130 years. The video shows a clear pattern of seasonal temperature changes along with momentary spikes throughout the centuries. It’s only recently that temperatures in most regions of the world (represented with intensified colors) started to really peak. In fact, since the year 2000, we’ve experienced nine of the 10 warmest years on record. And the researchers have noted that within the past 11 years, temperatures were significantly hotter than in the middle and late 20th century.
The warmest years on record were 2005 and 2010, registering as a virtual tie. The weather data was culled from more than 1,000 meteorological stations around the world, satellite measurements of sea surface temperature and recordings from an Antarctic research station. Researchers then used a computer program (available to the public) to calculate the difference between the surface temperature in a given month and the average temperature for the same place from 1951 to 1980, which served as a baseline for the analysis. Similar results from the UK’s Met Office Hadley Centre and the National Oceanic and Atmospheric Administration’s (NOAA) National Climatic Data Center corroborated with NASA’s findings.
The carbon dioxide level in the atmosphere was about 285 ppm in 1880, when the GISS global temperature record begins. By 1960, the average concentration had risen to about 315 ppm. Today it exceeds 390 ppm and continues to rise at an accelerating pace.
Topics: Global Warming and Climate Change
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