Global Warming

Anthropogenic global warming is real, it is it is worldwide and it will affect future generations.

As an environmental engineer, I have been concerned about the environment since I got my BS (1967) and MS (1971) degrees in Civil/ Environmental Engineering and started working as a water engineer.

I have used publicly available data sources to prepare dozens of charts & graphs to looking at every aspect of global warming that I learn and understand global warming for myself .  Here’s a quick summary of my evidence for global warming.

Rising Global Temperatures

  • Global land and sea surface air temperature (SAT) anomalies have been rising at a rapid rate since the 1970s. My chart of NASA GISS ‘s monthly temperature anomaly trends from 1880 shows a rapid rise since the 1970s.
  • Global sea surface temperature (SST) anomalies have also been rising, as shown in my chart of NOAA global SST anomalies since 1880.
  • Temperature changes over the globe are not uniform . Arctic  amplification cause the higher latitude areas to have a greater temperature increase than lower latitude zones. This NASA  map  shows that Arctic region temperatures have increased much more than lower latitudes.

Rising Mean Sea Level

Declining Arctic Sea ice Extent

  • Arctic sea ice extent measures the area where sea ice exceeds 15%. Mychart of monthly Arctic sea ice extent shows a continuing decline over the satellite observation period starting in 1979. Each month shows a decline. Polar amplification magnifies the global temperature increases so that the Arctic experiences a much greater temperature increase, resulting in shrinking sea ice, reduced solar reflection and reduced albedo.

                                            Global Warming Trends

Data Set KOD Chart (Click to Enlarge)
1. NASA GISS temperature anomaly – Temperature anomaly is difference between the long term mean monthly value and current months temperature. RClimate_GISS_trend_latest
2. Sea Surface Temperature anomaly – Sea surface temperature anomaly (SSTA) is the  difference between long term mean monthly value and current months sea surface temperature. SSTA
3. Arctic Amplification – Notice the dark red areas in the Arctic Region of this NASA map, It shows that the upper latitudes are warming at a much greater rate than the lower latitudes, helping to explain why Arctic Sea ice is melting at such an alarming rate.


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