The reality of Climate Change has become painfully apparent in recent years, thanks to extended droughts in places like California, diminishing water tables around the world, rising tides, and coastal storms of increasing intensity and frequency. But perhaps the most measurable trend is the way that average global temperatures have kept rising year after year.
And this has certainly been the case for the year of 2016. According to independent analyses provided by NASA’s Goddard Institute for Space Studies (GISS) and the National Oceanic and Atmospheric Agency (NOAA), 2016 was the warmest year since modern record keeping began in 1880. This represents a continuation of a most alarming trend, where 16 of the 17 warmest years on record have occurred since 2001.
Based in New York, GISS conducts space and Earth sciences research, in support of the Goddard Space Flight Center’s (GSFC) Sciences and Exploration Directorate. Since its establishment in 1961, the Institute has conducted valuable research on Earth’s structure and atmosphere, the Earth-Sun relationship, and the structure and atmospheres of other planets in the Solar System.
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Their early studies of Earth and other solar planets using data collected by satellites, space probes, and landers eventually led to GISS becoming a leading authority on atmospheric modeling. Similarly, the NOAA efforts to monitor atmospheric conditions and weather in the US since 1970s has led to them becoming a major scientific authority on Climate Change.
Together, the two organizations looked over global temperature data for the year of 2016 and came to the same conclusion. Based on their assessments, GISS determined that globally-averaged surface temperatures in 2016 were 0.99 °C (1.78 °F) warmer than the mid-20th century mean. As GISS Director Gavin Schmidt put it, these findings should silence any doubts about the ongoing nature of Global Warming:
“2016 is remarkably the third record year in a row in this series. We don’t expect record years every year, but the ongoing long-term warming trend is clear.”
The NOAA’s findings were similar, with an average temperature of 14.83 °C (58.69 °F) being reported for 2016. This surpassed last year’s record by about 0.004 °C (0.07 °F), and represents a change of around 0.94 °C (1.69 F) above the 20th century average. The year began with a boost, thanks to El Nino; and for the eight consecutive months that followed (January to August) the world experienced record temperatures.
This represents a consistent change since 2001, where average global temperatures have increased, leading to of the 16 warmest years on record since 1880 in a row. In addition, on five separate occasions during this period, the annual global temperature was record-breaking – in 2005, 2010, 2014, 2015, and 2016, respectively.
With regards to the long-term trend, average global temperatures have increased by about 1.1° Celsius (2° Fahrenheit) since 1880. This too represents a change, since the rate of increase was placed at 0.8° Celsius (1.4° Fahrenheit) back in 2014. Two-thirds of this warming has occurred since 1975, which coincides with a period of rapid population growth, industrialization, and increased consumption of fossil fuels.
And while there is always a degree of uncertainty when it comes to atmospheric and temperature modelling, owing to the fact that the location of measuring stations and practices change over time, NASA indicated that they were over 95% certain of these results. As such, there is little reason to doubt them, especially since they are consistent with what is at this point a very well-documented trend.
And be sure to check out this NASA video that shows these changes on a global map: