man in front of blackboard wiht economic equasions - reversed



A revolving collection of photos and graphics which are intended to capture/suggest the main themes and issues treated here.


RUA top web page

To get full value from this somewhat ambitious web platform, we invite first-time visitors to spend a few minutes to work their way along the top menu from left to right to get a feeling for how each of these main sections works.  Taking them in order.

START: When you run your cursor over it, you will see that it can take you either to the homepage or to these instructions on the use of the site.

ON-AYRES.  Background information on Ayres’ qualifications, philosophy, list of publications, and also slots for his sweetheart projects on C. Marlowe and his artworks.

AYRES-ON: (Under construction. Eventually one click access to principal concerns of the author and the site.)

* LATEST *:  One-click links to articles, postings and commentaries appearing on the site over the last three months.  Updated monthly with earlier materials moved to the ARCHIVES section.

ARCHIVES: Eventually to contain anywhere from 50 to 100 outstanding articles, essays and editorials carefully culled from Ayres work over the last decades.  (For convenience, the archives will be searchable by a set of different but complementary search engines.)

OP-EDS: An open forum shared with colleagues who wish to comment, qualify or contribute from their own professional perspectives on the main issues which drive this site.  The hope is to turn this into a strong tribune, with the possibility of convenient reader comments.

TRANSLATE:  The content of the site now available thanks to Google in Arabic, Chinese, French, German, Japanese, Portuguese, Russian and Spanish.  To use with caution but remarkably useful for the curious reader who wants to get a gist of the piece in question.

CONNECT: How to get in touch with Ayres (Content) or Britton (Site)



POSTINGS: Presents all postings, normally with just the first paragraph or two, with a one click link for those who wish to read the full piece.

TAGS: To the left next to the title, you will see under the Tags heading one or more tags that when clicked call up all postings in that assigned category.

COMMENTS:  Comments invited and here is where you place and find them on the article in question.

SHARE:  At the base of each article are a set of links for convenient sharing.  The Print/PDF program permits editing before printing.


RIGHT HAND MENUrUA site right column

CLICK FOR WEEKLY UPDATE: Our recommended way to follow developments on the site without wasting your time.

NEW MEDIA LINKS: Very important and laid out here so that it is both near to hand an unobtrusive for those who (like Ayres) prefer for your own good reasons to give social media a pass.

FACEBOOK: Very handy, works as an efficient anteroom to and extension of the full site — at

TWITTER: Just betting underway — at

LINKEDIN: Just betting underway — at

GOOGLE+ Just betting underway — at

GOOGLE HANGOUT: For video conference calls – at

SKYPE: Preferred for one on one video – at newmobility

AMAZON AUTHOR: Ayres page on Amazon – at


SEARCH ENGINES: As you will see on the menu, you can search by Day, Topic/Category, Key words, Month/Year. Eventually we will install a home-built refinement of Google, which we call Knoogle (Knowledge Google).


OTHER:  The remained of the tools and references in this column will we hope be self-explanatory, but if you have questions, should do it.


# # #

About the editor:

Trained as a development economist, Eric Britton is a student, teacher and activist of sustainability and social justice. Professor of Sustainable Development, Economy and Democracy at the Institut Supérieur de Gestion (Paris), he is MD of EcoPlan International, an independent advisory network providing strategic counsel for government and business on policy and decision issues involving complex systems, social-technical change and sustainable development. Founding editor of World Streets, his latest work focuses on the subject of equity, economy and efficiency in city transport and public space, and helping governments to ask the right questions and in the process find practical solutions to urgent climate, mobility, life quality and job creation issues.




One thought on “HOW THIS SITE WORKS

  1. Happy to see a website devoted to the (mostly) good ideas of Robert Ayres.
    As the originator of the term if not the concept of EROI I would like to clarify a few things from my own perspective. The energy invested is usually and appropriately considered the energy diverted from society to get energy to society. Thus natural gas used to pressurize an oil/gas field or energy used in society to make a drill bit or oil rig or fertilizer for corn-based ethanol would be considered part of the investment. Geological energy to make radioactive uranium or oil would not. Energy used to give meaning to worker’s paychecks is debatable but important. Analyses are traditionally done at the wellhead/farmgate etc but can be done downstream. They should not be done for conversion efficiencies alone, such as conversion in a thermal plant, as EROI is meant for energy sources. I am not as hung up on exergy as Bob. Perhaps important in theory, but what we invest and divert is oil, electricity etc. (which can be corrected for quality if appropriate). The Murphy and Hall protocol is a good place to start, and I have just submitted to Springer a manuscript on EROI in biological and economic systems. I believe that discussion on these issues is healthy.

    Charlie Hall



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s