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Climate: From Catastrophe to Cataclysm

Please watch the 23 minute video, linked below, to completion. It shows an interview of Dr. Peter Carter (Director Climate Emergency Institute, IPCC expert reviewer, Co-author in 2018 of Unprecedented Crime: Climate Science Denial and Game Changers for Survival). This interview was conducted at COPS25 (“this is set up to fail”) currently underway in Madrid, Spain, on 10 December 2019.

Peter Carter gives a vividly clear, trenchantly concise summary of the state of Earth’s climate; the increasing acceleration of all the phenomena that drive global warming climate change (carbon dioxide, methane and nitrous oxide emissions); the obdurate denial of the climate emergency, and the opposition to any action in response to it by the high carbon-emitting fossil fuel-loving nations: the United States, Russia, Kuwait and Saudi Arabia, at the very least. I would venture to guess that Australia, under its current reactionary Morrison Administration, would also join the objecting ‘carbonaholics’ despite it currently experiencing a mega-drought with massive and uncontrolled wildfires.

The average global temperature today is just under 1.4°C above its level during the years 1951 to 1980 (the baseline). The level in year 1000 coincided with the baseline. Between 1000 and the baseline years the temperature dipped to an average low 0.5°C below baseline, which extended from 1500 to 1800. All temperature fluctuations during the 800 years between 1000 and 1800 were well less than 0.5°C (plus or minus). Average global temperature has risen since 1980 at an average rate of 0.5°C every 14 years. Climate science has identified 1.5°C above baseline as the threshold between catastrophe to cataclysm; the threshold of 2°C above baseline, much publicized for over a decade as the “safe limit,” is actually over the redline of our climate change tachometer: “blown engine,” biosphere collapse.

The global carbon dioxide (CO2) level was between 275ppm and 285ppm (ppm = parts per million, 1 ppm is equivalent to 0.01% by volume) between years 1000 and 1800. By 1900 it was 300ppm, rising increasingly rapidly since. Today’s CO2 concentration in the atmosphere is 415ppm, a level that last occurred 3 million years ago.

The global methane (CH4) level was between 650ppb and 700ppb (ppb = parts per billion) between years 1000 and 1750. The methane level has risen at an increasing rate since: from 700ppb in 1750 to 850ppb in 1900; and then zooming to over 1850ppb today. Methane is 86 times more potent a greenhouse gas than carbon dioxide. Peter Carter describes the massive explosion of methane emission that is occurring right now around Point Barrow, Alaska.

The global nitrous oxide (N2O) level was between 264ppb and 274ppb between years 1000 and 1880. Thereafter it zoomed at an increasing rate to 332ppb today.

Considering the mean sea level to have been at a baseline elevation in 1900 (which also coincided with its elevation in 1150, 1300, 1450 and 1800) its fluctuations about baseline between years 1000 and 1900 were limited to 8 centimeters (3.2 inches) above, and 3 centimeters (1.2 inches) below. Since 1900 the elevation of mean sea level has increased to almost 22 centimeters (8.7 inches) above baseline today; a steady average rate-of-rise of almost 2 centimeters per decade since the beginning of the 20th century.

Again, please watch the video to hear Dr. Peter Carter’s very important, concise and pungent summary of where our world is today regarding its climate change emergency: stepping out blindly from catastrophe into cataclysm.

Dr Peter Carter: summarising the lack of “climate emergency” at #COP25

[23:11], 10 December 2019

Note

The numerical values given for CO2, CH4, N2O concentrations, and changes in global temperature and mean-sea-level, were read from charts published by the 2 Degrees Institute.

 

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Manuel Garcia Jr, once a physicist, is now a lazy househusband who writes out his analyses of physical or societal problems or interactions. He can be reached at mangogarcia@att.net

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