Climate Change 2016: The Year the Future Arrived Bruce Melton - Truthout
go to original January 3, 2017

2016: The hottest year on record (CNN)

Our planet's systems have a tremendous capacity to absorb punishment before they begin to show signs of degradation. Earth's ecology self-heals like a cut on a finger. It assimilates pollution by chemical, physical and biological means - it changes pollutants into non-hazardous materials and proceeds upon its merry way as if there had been no pollution at all. Up to a point.

Acid rain is an excellent example of how our planet can self-heal. By the late 1960s, the United States was emitting so many sulfate and nitrate pollutants (smog) from burning fossil fuels, that sulfuric acid washed from the sky was killing forests and lakes. President Richard Nixon's Clean Air Act stopped about half of the sulfur from going into our atmosphere. This was enough to allow nature to take over again and our forests and lakes began to heal.

Global warming didn't really get started in a big way until the 1950s. Today, the warming rate is seven times greater than it was in the 1950s and the carbon emission rate is four times greater than in the '50s.

That same sulfur pollution that caused all the acid rain in the '60s and '70s is a global cooling pollutant that hides warming. With grossly increasing smog in Asia since about the turn of the century, the results have been that 30 percent of warming that should have occurred has been masked or covered up by global cooling sulfate smog.

It's also a very common misconception that some of the warming is natural. However, until about 100 years ago, our climate was cooling. The planet cooled about 5 degrees F in polar regions near Greenland (half or less globally) over the last 6,000 years. This research comes from mini-icecaps on Baffin Island where easily dateable rooted plants were revealed from melt. In the last 100 years, the temperature on Baffin has warmed about 7 degrees Fahrenheit; 2 degrees warmer than at any time in the last 120,000 years. Most of this warming has occurred since the 1950s.

The extremes we are experiencing now (temperature, rainfall, drought, etc.) will not increase at the same rate as the average temperature. The physics of thermodynamics say extremes will increase nonlinearly. Earth has lost its ability to buffer the warming. As we replace coal with non-fossil fuel alternatives, masking of warming by global cooling pollutants will also disappear, compounding the nonlinear rate of increasing extremes.

We live on a very complicated and dangerous planet that is worthy of great respect and awe. The past year's advances in climate science should urge us to put that respect and awe into practice, taking definitive action against global warming.

Read the rest at Truthout

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