Dec 172018

Temperature values for global warming are reported in degrees above pre-industrial levels, with average values dominating. However, it seems far more sensible to report values for regions where global warming is having the most impact, namely the Arctic and Antarctic. On average, we are about 1 degree Celsius over pre-industrial levels, and this frankly does not seem to disturb most people, particularly if defensively downplaying the impacts of global warming. Considering that the Arctic and Antarctic regions are now about 2-4 degrees Celsius over pre-industrial levels, and 3-4 degrees is when runaway negative feedback cycles occur, I suggest that these regions need to be the focus. In researching global warming (see, At The Tipping Point: How To Save Us From Self-Destruction, and understanding how natural entities are highly interconnected, I came to appreciate that it is these negative feedback cycles that will be most telling. They include occurrences such as:

  • Open water absorbing more heat, driving more melting of sea ice, more heat absorption.
  • Carbon soot on ice absorbing light, melting ice raising temperatures with greater light absorption from open water.
  • Melting water from glaciers creating a lubricating surface causing the glacier to slide into the sea, where it melts, leaving less cooling ice.
  • Melting permafrost releasing methane, that ramps up temperatures, resulting in more permafrost melting.


Perhaps it is time that we move away from the focus on average temperature increases and emphasis temperature increases in the Arctic and Antarctic where it really counts. Those who spin things to not see an impact of these regions on the overall world and themselves personally, really need to appreciate that all things in nature are connected!

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