Tag Archives: jevons

UN.org

Energy Efficiency doesn’t work because we don’t want it

Following Tim Harford’s article about Jevons Paradox, one argument in Jevons’ favour might be that economy offsets Energy Efficiency by more usages, added values and, finally, energy consumption because of our need to have more.

In this thoughtful 10-minute speech, Mujica, the Uruguayan President, presented a very committed political point of view, arguing that our environmental impact no longer allows us to maintain our willingness to have more. He spoke before representatives of the 139 countries attending the Rio+20 Summit on Sustainable Development opened by UN Secretary General Ban Ki-moon in Rio de Janeiro, Brazil in June 2012. Enjoy!

UN.org

Presidente Mujica

http://timharford.com/etc/biography/

Does Energy Efficiency really reduce energy consumption?

http://timharford.com/etc/biography/

Tim Harford

From a macro-economic point of view, is Energy Efficiency really a good thing? Or is it counter-productive? Some economist such as William Stanley Jevons used to think that “Energy Efficiency does not reduce energy consumption”. In this very thoughtful article, Tim Harford provides interesting insights to show that Energy Efficiency does reduce energy consumption.

Without trying to challenge this man of genius, Tim Harford, we can still have some doubts and not totally agree with him. Indeed, as someone commented in his blog: “Isn’t the reduction in the UK energy consumption mostly due to the fact that much industry has been displaced to other countries (China)? Wouldn’t you have to include “embodied” energy in your calculations when saying that reduced UK consumption per capita is a “mark against Khazzoom-Brookes”? How about internalizing external costs?”