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[OT]Re: blu-ray recommendations?




On Mon, 3 Dec 2018 16:37:22 +0100
<tomas@xxxxxxxxxx> wrote:

> On Mon, Dec 03, 2018 at 09:35:28AM -0500, Stefan Monnier wrote:
> > > "Energy"? Or "environmental externalities confounded?"
> > 
> > I remember it talking specifically about energy.
> 
> Interesting.

This "gray" or "emobodied" energy is usually being grotesquely
underestimated.
According to
https://www.dw.com/en/ecological-footprint-how-gray-energy-is-totally-underestimated/a-43261811 :

"The production of a laptop's hardware amounts to 1,000 kWh of grey
energy. That's equivalent to 40 days of continuous vacuuming."
and
"For the manufacture, transport, storing, selling and discarding of a
smart phone, 220 kWh of gray energy is needed. With that same energy, you
could charge your phone for 50 years." :)

Also interesting in this context may be this quote from
https://en.wikipedia.org/wiki/Embodied_energy#In_transportation :

"it is striking to note that we consume more embodied energy in our
transportation expenditures than direct energy [...]. Put in other words,
we consume less energy to move around in our personal vehicles than we
consume the energy we need to produce, sell and transport the cars,
trains or buses we use "

Regards

Michael

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