Hi, On 2014-12-08, parisse <bernard.pari...@ujf-grenoble.fr> wrote: > Le lundi 8 d=C3=A9cembre 2014 16:24:30 UTC+1, Emmanuel Charpentier a =C3=A9= > crit : >> >> How do you reach your estimate of 16 Wh/Google search ? Any source ? >> >> In French: > http://www.planetoscope.com/electronique/980-emissions-de-co2-par-les-reche= > rches-sur-google.html > 7g CO2/request. > Google's own published estimates are much lower (0.2g/request), but I'm not= >=20 > sure we can trust them.=20
I think it would be fair to compare 16 Wh/Google search with the amount of energy that a human consumes when searching in the library for one hour, walking around carrying heavy books. I guess it would be similar to "doing shopping", which is about 60 kcal per 15 minutes according to http://laufleistung.net/kalorienverbrauch-berechnen/. Thus, it is 240 kcal in one hour, which makes about 280 Wh. I don't know how much CO2 a human emmits in one hour. Best regards, Simon -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
