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Growing, Growing, Gone

posted 11 Sep 2015, 06:45 by John Hollins   [ updated 11 Sep 2015, 06:45 ]

Growing, Growing, Gone: Reaching the Limits

An interview with Dennis Meadows in 2015 June, tracing the origins of the Club of Rome,  leading to his views on the present. Please click here 

(courtesy of Jon Legg)

Planet squeezed dry

posted 22 Jun 2015, 13:55 by John Hollins   [ updated 22 Jun 2015, 13:55 ]

Pope Francis' Encyclical Letter reiterates the message of limits to growth.  From Paragraph 106: ... It is based on the lie that there is an infinite supply of the earth’s goods, and this leads to the planet being squeezed dry beyond every limit. Please click here

Montreal Protocol - a guide

posted 18 Jun 2015, 04:57 by John Hollins   [ updated 18 Jun 2015, 04:57 ]

Multilateral Environmental Agreements ... Montreal Protocol reflections to guide the future
by G. Victor Buxton on 2015 June 17
Please click here for the slides.

Scientific Understanding

posted 9 Jun 2015, 09:40 by John Hollins   [ updated 9 Jun 2015, 09:41 ]

Polar Jet Stream 

A recent article* suggests that large waves in the jet stream in recent years are evidence of arctic warming. 

Bill Pugsley has pointed out that atmospheric pressure patterns and the jet stream are driven by the temperature difference between the poles and the equator.  The reason why we have large amplitude jet streams (i.e., with loops that go far North and South) is to balance the temperature difference between the poles and the equator. Since the poles are warming more rapidly than the equator (as anticipated by climate models 25 years ago and confirmed by more recent measurements), the temperature differences between the two poles and the equator on a warming planet are actually declining, reducing the driving force, not increasing it. 

The suggestion in the paper that the looping will increase just does not make physical sense. The hypothesis would more effectively be tested by examining the output of global climate models, which would show not only the change in jet streams with climate change but the other results such as predicted temperature anomalies at the surface (on which all of the projections of climate warming are based). To attempt to replicate physical-mathematical modelling with statistics (which is what the authors here tried to do) is a 19th century approach.

It was impossible for Bill to check out the source document because the link to the article was not provided, but he observes that this topic - the dynamics of jet streams - belongs to the Quarterly Journal of the Royal Meteorological Society - one of the best known and authoritative meteorological journals in the world. To publish the paper in the Philosophical Transactions of the Royal Society seems odd and would not likely subject its content to the same rigorous review than if it had been published in the QJRMS.  The other leading journals are "Telus" from Norway and the Journals of Meteorology from the American Meteorological Society (there are 10), along with our own Atmosphere-Ocean from the Canadian Meteorological and Oceanographic Society, all of which conduct rigorous peer reviews of published journal articles by leading world scientific leaders

Science by press release is not a good way to learn! 

(*The article is here.)

Hoffman: Decoupling, Anthropocene ...

posted 4 Jun 2015, 08:56 by John Hollins   [ updated 4 Jun 2015, 08:57 ]

At the CACOR AGM on 2015 May 27, Robert Hoffman made a presentation on Decoupling, Anthropocene, Energy and Greenhouse Gas Emissions, New Economics and the Circular Economy.  Please click here for his notes.

Mass Extinction and Fossil Fuel

posted 31 May 2015, 05:36 by John Hollins   [ updated 31 May 2015, 05:37 ]

George Monbiot suggests that it now looks as if the greatest mass extinction on Earth – 250 million years ago – was caused by fossil fuel burning.  Please click here.

Club of Rome News

posted 31 May 2015, 05:22 by John Hollins   [ updated 31 May 2015, 05:23 ]

CACOR Climate Group

posted 23 Apr 2015, 09:08 by John Hollins   [ updated 23 Apr 2015, 09:10 ]

The participants at the CACOR/Club of Rome Conference in Ottawa in September 2013 accepted the proposition that the peoples of the world face a superordinate challenge: global warming.  The same month, ten members of CACOR formed an informal Climate Group to share news and views by email.  Ian Whyte has now set up a mailing list server* for this group to facilitate the exchange of emails.  If any other members of CACOR would like to join the group, please send a message to ianrwhyte at If, in due course, you wish to leave the group, Ian will remove your name from the list.

 * A mailing list server is a program that handles subscription requests for a mailing list and distributes new messages, newsletters, or other postings from the list's members to the entire list of subscribers as they occur or are scheduled. 


posted 22 Apr 2015, 08:04 by John Hollins   [ updated 22 Apr 2015, 08:09 ]

Robert Hoffmann, a Member of the Club of Rome and of CACOR, has written a critique, Bromidesof the paper Acting on Climate Change: Solutions by Canadian Scholars. 

Collision Course

posted 6 Apr 2015, 16:55 by John Hollins   [ updated 6 Apr 2015, 16:55 ]

Recommended by Ian Whyte: Collision Course (Endless Growth on a Finite Planet) by Kerryn Higgs, a book published by MIT. Here's a review by Herman Daly.

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