400 ppm and the rising cost of climate change

Doc1400 ppm and the rising cost of climate change / Meredith Fowlie, Energy economics exchange, Energy Institute at Haas blog, 20/05/2013

http://energyathaas.wordpress.com/2013/05/20/400-ppm-and-the-rising-cost-of-climate-change/

Last week brought some sobering news from the Mauna Loa Observatory where the Keeling family has been dutifully recording atmospheric concentrations of carbon dioxide since 1958. On May 9, measured concentrations surpassed 400 parts per million (ppm). Of course, from a scientific perspective, there is nothing particularly significant about the number 400. But cognitively, round numbers have an ability to attract attention as symbolic –and in this case, unnerving- milestones…


Vous aimerez aussi...

Laisser un commentaire

Votre adresse e-mail ne sera pas publiée.

Ce site utilise Akismet pour réduire les indésirables. En savoir plus sur comment les données de vos commentaires sont utilisées.

Rechercher dans OpenEdition Search

Vous allez être redirigé vers OpenEdition Search