Catherine Mohr builds green

Prevoditelj: Davorin Jelačić Recezent: Mislav Ante Omazić - EFZG

First of all, I'm a geek.

Kao prvo, ja sam štreberica.

I'm an organic food-eating,

Ja sam fanatik organske hrane,

carbon footprint-minimizing, robotic surgery geek.

smanjenja ugljikovih tragova, robotske kirurgije,

And I really want to build green,

i zaista želim graditi zeleno,

but I'm very suspicious

ali sam vrlo sumnjičava

of all of these well-meaning articles,

prema svim tim dobro namjernim člancima,

people long on moral authority

ljudi jakih na moralnom autoritetu,

and short on data,

a slabih na podacima

telling me how to do these kinds of things.

koji mi govore kako da to učinim.

And so I have to figure this out for myself.

Pa moram otkriti kako to učiniti sama.

For example: Is this evil?

Na primjer: je li ovo zlo?

I have dropped a blob of organic yogurt

Prolila sam malo organskog jogurta

from happy self-actualized local cows

koji dolazi od sretnih samoostvarenih lokalnih krava

on my counter top,

na svoju radnu ploču,

and I grab a paper towel and I want to wipe it up.

i zgrabila sam papirnati ubrus i želim to obrisati.

But can I use a paper towel? (Laughter)

Ali smijem li koristiti papirnati ubrus? (Smijeh)

The answer to this can be found in embodied energy.

Odgovor na ovo se može naći u utjelovljenoj energiji.

This is the amount of energy that goes into

To je količina energije koja ulazi

any paper towel or embodied water,

u svaki papirnati ubrus i upotrijebljenu vodu.

and every time I use a paper towel,

I svaki put kad koristim papirnati ubrus,

I am using this much

koristim toliko

virtual energy and water.

virtualne energije i vode.

Wipe it up, throw it away.

Obriši i baci.

Now, if I compare that to a cotton towel

Sad, ako to usporedim s pamučnim ubrusom

that I can use a thousand times,

koji mogu koristiti tisuću puta,

I don't have a whole lot of embodied energy

nemam baš puno utjelovljene energije

until I wash that yogurty towel.

dok ne operem taj ubrus od jogurta.

This is now operating energy.

To je sada operativna energija.

So if I throw my towel in the washing machine,

Pa ako bacim svoj ubrus u perilicu,

I've now put energy and water

tada sam vratila energiju i vodu

back into that towel ...

natrag u ubrus,

unless I use a front-loading, high-efficiency washing machine, (Laughter)

osim ako ne koristim učinkovitu perilicu s prednjim punjenjem,

and then it looks a little bit better.

a tada to izgleda nešto bolje.

But what about a recycled paper towel

Ali što je s recikliranim papirnatim ubrusima

that comes in those little half sheets?

koji dolaze u malim polulistovima?

Well, now a paper towel looks better.

Pa, sad papirnati ubrus djeluje bolje.

Screw the paper towels. Let's go to a sponge.

Tko šljivi papirnate ubruse. Idemo na spužvu.

I wipe it up with a sponge, and I put it under the running water,

Obrišem jogurt spužvom, stavim je pod tekuću vodu,

and I have a lot less energy and a lot more water.

i imam puno manje energije i puno više vode,

Unless you're like me and you leave the handle

osim ako ste poput mene i ostavite ručicu

in the position of hot even when you turn it on,

u položaju „vruće“ čak i kad je otvorite,

and then you start to use more energy.

i tada počinjete koristiti više energije,

Or worse, you let it run until it's warm

ili još gore, pustite da teče dok nije topla

to rinse out your towel.

da biste isprali svoj ubrus.

And now all bets are off.

I tu sve pada u vodu.

(Laughter)

(Smijeh)

So what this says is that

Ono što nam ovo pokazuje je

sometimes the things that you least expect --

da ponekad stvari koje najmanje očekujete,

the position in which you put the handle --

položaj u koji stavite ručicu,

have a bigger effect than any of those other things

ima veći utjecaj nego bilo koja od onih stvari

that you were trying to optimize.

koje pokušavate optimizirati.

Now imagine someone as twisted as me

Zamislite sad nekoga uvrnutog poput mene

trying to build a house.

tko pokušava graditi kuću.

(Laughter)

(Smijeh)

That's what my husband and I are doing right now.

To je ono što baš sad činimo suprug i ja.

And so, we wanted to know, how green could we be?

I željeli smo znati koliko zeleni bismo mogli biti.

And there's a thousand and one articles out there

Postoji tisuću i jedan članak

telling us how to make all these green trade-offs.

koji nam govori kako postići sve te zelene uštede.

And they are just as suspect

Ti članci su jednako tako sumnjivi

in telling us to optimize these little things around the edges

govoreći nam da optimiziramo male rubne stvari,

and missing the elephant in the living room.

a promašimo slona u dnevnoj sobi.

Now, the average house

Prosječna kuća

has about 300 megawatt hours

ima oko 300 megawatt sati

of embodied energy in it;

utjelovljene energije u sebi.

this is the energy it takes to make it --

To je energija potrebna da je izgradimo,

millions and millions of paper towels.

miijuni i milijuni papirnatih ubrusa.

We wanted to know how much better we could do.

Željeli smo znati koliko bolji bismo mi mogli biti.

And so, like many people,

Pa, kao i mnogi drugi,

we start with a house on a lot,

počinjemo s kućom na placu,

and I'm going to show you a typical construction on the top

i pokazat ću vam tipičnu konstrukciju na vrhu

and what we're doing on the bottom.

i što činimo na dnu.

So first, we demolish it.

Prvo smo je demolirali.

It takes some energy, but if you deconstruct it --

Ovo troši energiju, ali ako je razgrađujete,

you take it all apart, you use the bits --

sve rastavite i koristite dijelove,

you can get some of that energy back.

možete povratiti nešto energije.

We then dug a big hole

Zatim kopamo duboku rupu

to put in a rainwater catchment tank

u koju ćemo staviti spremnik za prikupljanje kišnice

to take our yard water independent.

kako bi nam voda za vrt bila neovisna.

And then we poured a big foundation

A zatim smo usuli veliki temelj

for passive solar.

za pasivni solar.

Now, you can reduce the embodied energy

Možete smanjiti utjelovljenu energiju

by about 25 percent

za oko 25 posto

by using high fly ash concrete.

koristeći pepeljasti beton.

We then put in framing.

Zatim postavljamo okvir.

And so this is framing -- lumber,

Ovo je okvir, drvo,

composite materials --

kompozitni materijali,

and it's kind of hard to get the embodied energy out of that,

i nekako je teško izvući utjelovljenu energiju iz toga,

but it can be a sustainable resource

ali to može biti održivi resurs

if you use FSC-certified lumber.

ako koristite drvo s certifikatom Vijeća za čuvanje šuma (F.S.C.)

We then go on to

Zatim smo došli do

the first thing that was very surprising.

prve stvari koja je bila iznenađujuća.

If we put aluminum windows in this house,

Ako na ovu kuću stavimo aluminijske prozore,

we would double the energy use right there.

samo time bismo udvostručili potrošnju energije.

Now, PVC is a little bit better,

PVC je nešto malo bolji,

but still not as good as the wood that we chose.

ali i dalje ne tako dobar kao drvo koje smo odabrali.

We then put in plumbing,

Zatim smo proveli vodu,

electrical and HVAC,

struju, grijanje, ventilaciju

and insulate.

i izolaciju.

Now, spray foam is an excellent insulator -- it fills in all the cracks --

Pjena iz spreja je odličan izolator, ispunjava sve pukotine,

but it is pretty high embodied energy,

ali je ona prilično velika utjelovljena energija.

and, sprayed-in cellulose or blue jeans

Celuloza iz spreja ili plavi džins

is a much lower energy alternative to that.

je alternativa s puno manje energije.

We also used straw bale

Također smo uzeli bale sijena

infill for our library,

kao ispunu za našu knjižnicu,

which has zero embodied energy.

koja ima nultu utjelovljenu energiju.

When it comes time to sheetrock,

Kad nastupi vrijeme za pločasti kamen,

if you use EcoRock it's about a quarter

ako koristite EcoRock, on ima oko četvrtine

of the embodied energy of standard sheetrock.

utjelovljene energije u odnosu na standardni pločasti kamen.

And then you get to the finishes,

A tada dolazite do finalizacije,

the subject of all of those "go green" articles,

teme svih tih zelenih članaka.

and on the scale of a house

I u odnosu na cijelu kuću,

they almost make no difference at all.

završni radovi gotovo da ne prave nikakvu razliku.

And yet, all the press is focused on that.

Pa ipak, sve novine su koncentrirane na to.

Except for flooring.

S izuzetkom poda.

If you put carpeting in your house,

Ako stavite tepih u kuću,

it's about a tenth of the embodied energy of the entire house,

na njega otpada oko desetine utjelovljene energije čitave kuće,

unless you use concrete or wood

osim ako koristite beton ili drvo

for a much lower embodied energy.

da biste dobili puno manju utjelovljenu energiju.

So now we add in the final construction energy, we add it all up,

Znači, dodajemo energiju završne konstrukcije, sve zbrojimo,

and we've built a house for less than half

i izgradili smo kuću za manje od polovice

of the typical embodied energy for building a house like this.

tipične utjelovljene energije za izgradnju kuće poput ove.

But before we pat ourselves

Ali prije nego što si previše

too much on the back,

pljeskamo po leđima,

we have poured 151 megawatt hours

uložili smo 151 megawatt sati

of energy into constructing this house

energije u izgradnju ove kuće,

when there was a house there before.

a ovdje je i prije bila kuća.

And so the question is:

Pa se postavlja pitanje:

How could we make that back?

Kako možemo nadoknaditi tu energiju?

And so if I run my new energy-efficient house forward,

Pa, ako svoju energetski učinkovitu kuću promotrim kroz vrijeme,

compared with the old, non-energy-efficient house,

u usporedbi sa starom, energetski neučinkovitom kućom,

we make it back in about six years.

nadoknadit ćemo tu energiju za nekih 6 godina.

Now, I probably would have upgraded the old house

Ipak, ja bih vjerojatno i unaprijedila svoju staru kuću

to be more energy-efficient,

da postane malo više energetski učinkovita.

and in that case,

U tom slučaju,

it would take me more about 20 years to break even.

bilo bi potrebno 20 godina da se nadoknadi ona energija.

Now, if I hadn't paid attention to embodied energy,

Ali da nisam obraćala pažnju na utjelovljenu energiju,

it would have taken us

trebalo bi nam

over 50 years to break even

više od 50 godina da se energetski izjednačimo

compared to the upgraded house.

s unaprijeđenom kućom.

So what does this mean?

Što sve ovo znači?

On the scale of my portion of the house,

Na razini mojeg dijela kuće,

this is equivalent to about

ovo je ekvivalent

as much as I drive in a year,

energije koju potrošim vozeći se godinu dana,

it's about five times as much

a pet puta je više

as if I went entirely vegetarian.

nego da sam postala čisti vegetarijanac.

But my elephant in the living room flies.

Ali moj slon u dnevnoj sobi leti.

Clearly, I need to walk home from TED.

Očito, s TED-a moram kući pješice.

But all the calculations

Ali svi izračuni

for embodied energy are on the blog.

za utjelovljenu energiju su na blogu.

And, remember, it's sometimes the things that you are not expecting

I, zapamtite, stvari koje ne očekujete ponekad

to be the biggest changes that are.

donose najveće promjene.

Thank you. (Applause)

Hvala vam. (Pljesak)