Why is there so much preoccupation with atmospheric CO2 concentrations and reducing anthropogenic CO2 emissions when it is well documented in the peer-reviewed scientific literature that the CO2 contribution to the overall greenhouse effect is so weak that it can be easily supplanted by small changes in clouds and water vapor, or natural climate-changing constituents?

http://notrickszone.com/2016/09/19/new-paper-documents-imperceptible-co2-influence-on-the-greenhouse-effect-since-1992/

Wednesday, 17 December 2014

CO2 Driven Climate Panic in Jeopardy: a prospect of it being disgraced even further by observation of ice variation

WUWT
WUWT has what I think is an informative and important presentation by Jim Steele.

Very much in the tradition of Hubert Lamb, he makes a plea for much better understanding of natural variation of climate as a pre-condition for being able to assess our impact on it.

He makes a plausible case that the next 10 to 20 years could be decisive in assessing the strength of human impact (via CO2 in particular) and natural variation on glacier and icecap variation.

Another reason to postpone panic over our CO2 emissions.  Unfortunately, we have had panic already, and a great deal of consequent suffering and damage to societies around the world, and indeed to the environment thanks to the headlong rush into bio-fuels and wind-turbines.  The damage to children who grew up over the last 20 years or so of intense scaremongering directed at them, and an associated promotion of contempt for industrial progress, may be the biggest harm of all.  But who can tell?  How could this be measured?  How might that damage, however extensive, be repaired?

Jim Steele notes that 'the public remains ill-informed and fearful about the causes of retreating ice'.  He presents evidence for solar, and oceanic influences being the dominant sources of variation over the past several thousands of years.

Screenshot from video
He notes the 'failed climatic interpretations' of glacier retreats on Kilimanjaro in Tanzania, and Glacier National Park in the United States. Neither of them correlate with rising CO2 levels, and both can be explained by other sources of variation.  It is worth noting that 'failed climatic interpretations' would make a good sub-title for the propaganda movie 'An Inconvenient Truth' which was foisted upon schools by a government in the UK and has been widely shown in schools elsewhere as well.


Jim Steele concludes the substance of his presentation with these words:

'With the recent decline in solar flux, and the shift to cool phases of ocean oscillations, natural climate change suggests that although glacier retreat and sea level rise will likely continue for the next few decades, the rates of sea level rise and glacier retreats will slow down.

The next decade will provide the natural experiment to test the validity of competing hypotheses.
Are changes in the Earth's ice driven by natural, or by CO2-driven climate change?

I'm betting on natural climate change.'


Jim Steele's website is here: http://landscapesandcycles.net/

It is of particular interest for this blog that as well as being a director of a field centre for nature studies, Jim Steele has decades of high school teaching experience in San Francisco.  See: http://www.sfsu.edu/~sierra/Instructor_JimSteele.html

No comments:

Post a Comment