Catherine Mohr builds green

35,993 views ใƒป 2010-04-14

TED


ืื ื ืœื—ืฅ ืคืขืžื™ื™ื ืขืœ ื”ื›ืชื•ื‘ื™ื•ืช ื‘ืื ื’ืœื™ืช ืœืžื˜ื” ื›ื“ื™ ืœื”ืคืขื™ืœ ืืช ื”ืกืจื˜ื•ืŸ.

ืžืชืจื’ื: Victor Gens ืžื‘ืงืจ: Sigal Tifferet
00:16
First of all, I'm a geek.
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ืงื•ื“ื ื›ืœ, ืื ื™ ื—ื ื•ื ื™ืช.
00:19
I'm an organic food-eating,
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ื›ื–ื• ืฉืื•ื›ืœืช ืื•ื›ืœ ืื•ืจื’ื ื™,
00:21
carbon footprint-minimizing, robotic surgery geek.
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ืžื ืกื” ืœื—ืกื•ืš ื‘ืคื—ืžืŸ, ื—ื•ื‘ื‘ืช ื ื™ืชื•ื—ื™ื ืจื•ื‘ื•ื˜ื™ื™ื,
00:24
And I really want to build green,
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ื•ืื ื™ ื‘ืืžืช ืจื•ืฆื” ืœื‘ื ื•ืช ื™ืจื•ืง,
00:27
but I'm very suspicious
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ืื‘ืœ ืื ื™ ืžืื“ ื—ืฉื“ื ื™ืช
00:29
of all of these well-meaning articles,
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ื›ืœืคื™ ื›ืœ ื”ื›ืชื‘ื•ืช ืขื ื”ื›ื•ื•ื ื•ืช ื”ื˜ื•ื‘ื•ืช,
00:31
people long on moral authority
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ื‘ื”ืŸ ืื ืฉื™ื ืฉื ืกื—ืคื™ื ืœื›ื™ื•ื•ืŸ ืžื•ืกืจื™
00:33
and short on data,
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ืืš ื—ืฉื•ืš ืžื™ื“ืข ืžืžืฉื™
00:35
telling me how to do these kinds of things.
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ืื•ืžืจื™ื ืœื™ ืื™ืš ืœื‘ืฆืข ื“ื‘ืจื™ื ื›ืืœื”.
00:37
And so I have to figure this out for myself.
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ื•ืœื›ืŸ ืื ื™ ื—ื™ื™ื‘ืช ืœื”ื‘ื™ืŸ ืืช ื–ื” ื‘ืขืฆืžื™.
00:39
For example: Is this evil?
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ืœื“ื•ื’ืžื: ื”ืื ื–ื” ืจืฉืข?
00:42
I have dropped a blob of organic yogurt
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ืฉืคื›ืชื™ ืžืขื˜ ื™ื•ื’ื•ืจื˜ ืื•ืจื’ื ื™
00:45
from happy self-actualized local cows
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ื”ืžื™ื•ืฆืจ ืขืœ-ื™ื“ื™ ืคืจื•ืช ืžืงื•ืžื™ื•ืช ืžืื•ืฉืจื•ืช
00:47
on my counter top,
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ืขืœ ื’ื‘ื™ ื”ื“ืœืคืง ืฉืœื™.
00:49
and I grab a paper towel and I want to wipe it up.
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ืื– ืœืงื—ืชื™ ืžื’ื‘ืช ื ื™ื™ืจ ื•ืจืฆื™ืชื™ ืœื ื’ื‘ ืื•ืชื•.
00:52
But can I use a paper towel? (Laughter)
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ืื‘ืœ ื”ืื ืื ื™ ื™ื›ื•ืœื” ืœื”ืฉืชืžืฉ ื‘ืžื’ื‘ืช ื ื™ื™ืจ? (ืฆื—ื•ืง)
00:55
The answer to this can be found in embodied energy.
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ื”ืชืฉื•ื‘ื” ืœื›ืš ื™ื›ื•ืœื” ืœื”ื™ืžืฆื ื‘ืื ืจื’ื™ื” ื’ืœื•ืžื”.
00:58
This is the amount of energy that goes into
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ื•ื”ื™ื ื‘ืขืฆื ื›ืžื•ืช ื”ืื ืจื’ื™ื” ื”ืžื•ืฉืงืขืช
01:00
any paper towel or embodied water,
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ื‘ื›ืœ ืžื’ื‘ืช ื ื™ื™ืจ ืื• ืžื™ื ื’ืœื•ืžื™ื.
01:02
and every time I use a paper towel,
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ื•ื‘ื›ืœ ืคืขื ืฉืื ื™ ืžืฉืชืžืฉืช ื‘ืžื’ื‘ืช ื ื™ื™ืจ,
01:04
I am using this much
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ืื ื™ ืžืฉืชืžืฉืช ื‘ื›ืžื•ืช ื›ื–ื•
01:06
virtual energy and water.
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ืฉืœ ืื ืจื’ื™ื” ื•ืžื™ื.
01:08
Wipe it up, throw it away.
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ืœื ื’ื‘ ื•ืœื–ืจื•ืง.
01:10
Now, if I compare that to a cotton towel
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ืขื›ืฉื™ื•, ืื ืื ื™ ืžืฉื•ื•ื” ืืช ื–ื” ืœืžื’ื‘ืช ื‘ื“
01:13
that I can use a thousand times,
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ื‘ื” ืื ื™ ื™ื›ื•ืœื” ืœื”ืฉืชืžืฉ ืืœืคื™ ืคืขืžื™ื,
01:15
I don't have a whole lot of embodied energy
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ืื™ืŸ ืœื™ ื”ืจื‘ื” ืื ืจื’ื™ื” ื’ืœื•ืžื”
01:18
until I wash that yogurty towel.
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ืขื“ ืฉืื ื™ ืฉื•ื˜ืคืช ืืช ื”ืžื’ื‘ืช ื”ืžืœืื” ื‘ื™ื•ื’ื•ืจื˜.
01:20
This is now operating energy.
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ืขื›ืฉื™ื• ื–ื• ืื ืจื’ื™ื” ืชืคืขื•ืœื™ืช.
01:23
So if I throw my towel in the washing machine,
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ืื– ืื ื™ ื–ื•ืจืงืช ืืช ื”ืžื’ื‘ืช ืœืžื›ื•ื ืช ื”ื›ื‘ื™ืกื”,
01:25
I've now put energy and water
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ื•ื›ืขืช ื”ืฉืงืขืชื™ ืื ืจื’ื™ื” ื•ืžื™ื
01:27
back into that towel ...
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ื—ื–ืจื” ืœืžื’ื‘ืช,
01:29
unless I use a front-loading, high-efficiency washing machine, (Laughter)
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ืืœื ืื ืื ื™ ืžืฉืชืžืฉืช ื‘ืžื›ื•ื ืช ื›ื‘ื™ืกื” ื™ืขื™ืœื” ื‘ืžื™ื•ื—ื“,
01:31
and then it looks a little bit better.
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ื•ืื– ื–ื” ื ื™ืจืื” ืงืฆืช ื™ื•ืชืจ ื˜ื•ื‘.
01:34
But what about a recycled paper towel
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ืื‘ืœ ืžื” ืœื’ื‘ื™ ืžื’ื‘ืช ื ื™ื™ืจ ืžืžื•ื—ื–ืจืช
01:36
that comes in those little half sheets?
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ืฉืžื’ื™ืขื” ื‘ื—ืฆืื™ ื™ืจื™ืขื•ืช?
01:38
Well, now a paper towel looks better.
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ื˜ื•ื‘, ืขื›ืฉื™ื• ืžื’ื‘ืช ื ื™ื™ืจ ื ืจืื™ืช ื™ื•ืชืจ ื˜ื•ื‘.
01:40
Screw the paper towels. Let's go to a sponge.
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ืœืขื–ืื–ืœ ืขื ืžื’ื‘ื•ืช ื ื™ื™ืจ. ื‘ื•ืื• ื ืฉืชืžืฉ ื‘ืกืคื•ื’.
01:42
I wipe it up with a sponge, and I put it under the running water,
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ืื ื™ ืžื ื’ื‘ืช ืืช ื–ื” ืขื ื”ืกืคื•ื’, ื•ืื ื™ ืฉืžื” ืื•ืชื• ืชื—ืช ืžื™ื ื–ื•ืจืžื™ื,
01:45
and I have a lot less energy and a lot more water.
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ื•ื™ืฉ ืœื™ ื”ืจื‘ื” ืคื—ื•ืช ืื ืจื’ื™ื” ื•ื”ืจื‘ื” ื™ื•ืชืจ ืžื™ื,
01:47
Unless you're like me and you leave the handle
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ืืœื ืื ื›ืŸ ืืชื ื›ืžื•ื ื™ ื•ืืชื ืžืฉืื™ืจื™ื ืืช ื”ื™ื“ื™ืช
01:49
in the position of hot even when you turn it on,
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ื‘ืžืฆื‘ ืฉืœ ืžื™ื ื—ืžื™ื ื’ื ื›ืืฉืจ ืืชื ืคื•ืชื—ื™ื ืืช ื”ื‘ืจื–,
01:51
and then you start to use more energy.
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ื•ืื– ืืชื ืžืชื—ื™ืœื™ื ืœื”ืฉืชืžืฉ ื‘ื™ื•ืชืจ ืื ืจื’ื™ื”,
01:53
Or worse, you let it run until it's warm
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ืื• ื™ื•ืชืจ ื’ืจื•ืข, ืืชื ื ื•ืชื ื™ื ืœืžื™ื ืœื–ืจื•ื ืขื“ ืฉื”ื ื—ืžื™ื
01:55
to rinse out your towel.
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ื›ื“ื™ ืœื ืงื•ืช ืืช ื”ืกืคื•ื’.
01:57
And now all bets are off.
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ื•ืขื›ืฉื™ื• ื›ืœ ื”ื›ืœืœื™ื ื ืฉื‘ืจื•.
01:59
(Laughter)
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(ืฆื—ื•ืง)
02:01
So what this says is that
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ืื– ืžื” ืฉื–ื” ืื•ืžืจ ื–ื”
02:03
sometimes the things that you least expect --
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ืฉืœืคืขืžื™ื ื”ื“ื‘ืจื™ื ืœื”ื ื”ื›ื™ ืคื—ื•ืช ืžืฆืคื™ื,
02:06
the position in which you put the handle --
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ื›ืžื• ื”ืžื™ืงื•ื ืฉืœ ื™ื“ื™ืช ื”ื‘ืจื–,
02:08
have a bigger effect than any of those other things
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ืžืฉืคื™ืขื™ื ื‘ืžื™ื“ื” ื”ืจื‘ื” ื™ื•ืชืจ ื’ื“ื•ืœื” ืžื™ืชืจ ื”ื“ื‘ืจื™ื
02:10
that you were trying to optimize.
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ืฉืืชื ืžื ืกื™ื ืœืฉืคืจ.
02:12
Now imagine someone as twisted as me
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ืขื›ืฉื™ื• ืชื“ืžื™ื ื• ืžื™ืฉื”ื• ืžืขื•ื•ืช ื›ืžื•ื ื™
02:14
trying to build a house.
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ืฉืžื ืกื” ืœื‘ื ื•ืช ื‘ื™ืช.
02:16
(Laughter)
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(ืฆื—ื•ืง)
02:19
That's what my husband and I are doing right now.
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ื–ื” ืžื” ืฉื‘ืขืœื™ ื•ืื ื™ ืขื•ืฉื™ื ืขื›ืฉื™ื•.
02:22
And so, we wanted to know, how green could we be?
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ืื– ืจืฆื™ื ื• ืœื“ืขืช ืขื“ ื›ืžื” ื™ืจื•ืงื™ื ืื ื—ื ื• ื™ื›ื•ืœื™ื ืœื”ื™ื•ืช.
02:24
And there's a thousand and one articles out there
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ื•ื™ืฉ ืืœืฃ ื•ืื—ืช ื›ืชื‘ื•ืช
02:26
telling us how to make all these green trade-offs.
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ืฉืื•ืžืจื•ืช ืœื ื• ืื™ืš ืœืื–ืŸ ื‘ื™ืŸ ื›ืœ ื”ืฉื™ืงื•ืœื™ื ื”ื™ืจื•ืงื™ื.
02:28
And they are just as suspect
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ื•ื”ื ืœื ืคื—ื•ืช ืžืขื•ืจืจื™ ืกืคืง
02:30
in telling us to optimize these little things around the edges
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ื‘ื›ืš ืฉื”ื ืื•ืžืจื™ื ืœื ื• ืœืฉืคืจ ืืช ื”ืคืจื˜ื™ื ื”ืงื˜ื ื™ื
02:33
and missing the elephant in the living room.
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ืืš ืžืคืกืคืกื™ื ืืช ื”ืคื™ืœ ื‘ืืžืฆืข ื”ืกืœื•ืŸ.
02:35
Now, the average house
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ืขื›ืฉื™ื•, ื‘ื‘ื™ืช ื”ืžืžื•ืฆืข
02:37
has about 300 megawatt hours
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ื™ืฉ ื›300 ืฉืขื•ืช ืžื™ืœื™ื•ืŸ ืžื’ื”-ื•ื•ืื˜ ืœืฉืขื”.
02:40
of embodied energy in it;
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ืฉืœ ืื ืจื’ื™ื” ื’ืœื•ืžื”
02:42
this is the energy it takes to make it --
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ื–ื• ื”ืื ืจื’ื™ื” ื”ื ื“ืจืฉืช ืœื‘ื ื•ืช ืื•ืชื•,
02:44
millions and millions of paper towels.
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ืžื™ืœื™ื•ื ื™ื ืขืœ ื’ื‘ื™ ืžื™ืœื™ื•ื ื™ื ืฉืœ ืžื’ื‘ื•ืช ื ื™ื™ืจ.
02:46
We wanted to know how much better we could do.
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ืจืฆื™ื ื• ืœื“ืขืช ืขื“ ื›ืžื” ื ื•ื›ืœ ืœืฉืคืจ.
02:49
And so, like many people,
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ื•ื›ืš, ื›ืžื• ืื ืฉื™ื ืจื‘ื™ื,
02:51
we start with a house on a lot,
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ื”ืชื—ืœื ื• ืขื ื‘ื™ืช ืขืœ ื—ืœืงื”,
02:53
and I'm going to show you a typical construction on the top
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ื•ืื ื™ ื”ื•ืœื›ืช ืœื”ืจืื•ืช ืœื›ื ื‘ื ื™ื” ื˜ื™ืคื•ืกื™ืช ืœืžืขืœื”
02:55
and what we're doing on the bottom.
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ื•ืžื” ืฉืื ื—ื ื• ืขื•ืฉื™ื ืœืžื˜ื”.
02:57
So first, we demolish it.
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ืื– ืชื—ื™ืœื”, ืื ื—ื ื• ื”ื•ืจืกื™ื ืืช ื”ื‘ื™ืช.
02:59
It takes some energy, but if you deconstruct it --
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ื–ื” ืฆื•ืจืš ื›ืžื•ืช ืžืกื•ื™ืžืช ืฉืœ ืื ืจื’ื™ื”, ืืš ืื ืžืคืจืงื™ื ืื•ืชื•,
03:02
you take it all apart, you use the bits --
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ืœื•ืงื—ื™ื ืืช ื—ืœืงื™ ื”ื‘ื™ืช ื•ืžืฉืชืžืฉื™ื ื‘ื”ื,
03:04
you can get some of that energy back.
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ืืคืฉืจ ืœื”ื—ื–ื™ืจ ืžืขื˜ ืžื”ืื ืจื’ื™ื” ื”ื–ื•.
03:06
We then dug a big hole
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ืื– ื—ืคืจื ื• ื‘ื•ืจ ื’ื“ื•ืœ
03:08
to put in a rainwater catchment tank
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ื›ื“ื™ ืœื”ื›ื ื™ืก ืœืชื•ื›ื• ืžื™ื›ืœ ืœืื™ืกื•ืฃ ืžื™ ื’ืฉืžื™ื
03:10
to take our yard water independent.
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ืฉื™ืกืคืง ืœื’ื™ื ื” ืฉืœื ื• ืžื™ื ื‘ืื•ืคืŸ ืขืฆืžืื™.
03:12
And then we poured a big foundation
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ื•ืื– ื™ืฆืงื ื• ืชืฉืชื™ืช ื’ื“ื•ืœื”
03:14
for passive solar.
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ืœื ื™ืฆื•ืœ ืคืืกื™ื‘ื™ ืฉืœ ืื ืจื’ื™ื” ืกื•ืœืืจื™ืช.
03:16
Now, you can reduce the embodied energy
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ืขื›ืฉื™ื•, ื ื™ืชืŸ ืœื”ืคื—ื™ืช ืืช ื”ืื ืจื’ื™ื” ื”ื’ืœื•ืžื”
03:18
by about 25 percent
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ื‘ื›25 ืื—ื•ื–ื™ื
03:20
by using high fly ash concrete.
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ืื ืžืฉืชืžืฉื™ื ื‘ื‘ื˜ื•ืŸ ืžืœื ื‘ืืคืจ ืžืจื—ืฃ.
03:23
We then put in framing.
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ืื—ืจ ื›ืš ื”ื›ื ืกื ื• ืžืกื’ื•ืจ.
03:25
And so this is framing -- lumber,
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ืื– ื–ื”ื• ืžืกื’ื•ืจ, ืขืฅ
03:27
composite materials --
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ื—ื•ืžืจื™ื ืžื•ืจื›ื‘ื™ื,
03:29
and it's kind of hard to get the embodied energy out of that,
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ื•ืงืฆืช ืงืฉื” ืœื”ื•ืฆื™ื ืžื–ื” ืืช ื”ืื ืจื’ื™ื” ื”ื’ืœื•ืžื”
03:32
but it can be a sustainable resource
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ืื‘ืœ ื–ื” ื™ื›ื•ืœ ืœื”ื™ื•ืช ืžืฉืื‘ ื‘ืจ ืงื™ื™ืžื
03:34
if you use FSC-certified lumber.
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ืื ืžืฉืชืžืฉื™ื ื‘ืขืฅ ืžืื•ืฉืจ ืขืœ ื™ื“ื™ F.S.C.
03:37
We then go on to
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ืื– ื”ืžืฉื›ื ื•
03:39
the first thing that was very surprising.
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ืœื“ื‘ืจ ื”ืจืืฉื•ืŸ ืฉื”ื™ื” ืžืื•ื“ ืžืคืชื™ืข.
03:41
If we put aluminum windows in this house,
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ืื ืฉืžื™ื ื—ืœื•ื ื•ืช ืืœื•ืžื™ื ื™ื•ื ื‘ื‘ื™ืช,
03:44
we would double the energy use right there.
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ืื ื• ืžื›ืคื™ืœื™ื ืืช ื”ืื ืจื’ื™ื” ื”ื ืฆืจื›ืช.
03:47
Now, PVC is a little bit better,
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PVC ืœืขื•ืžืช ื–ืืช ืงืฆืช ื™ื•ืชืจ ื˜ื•ื‘,
03:49
but still not as good as the wood that we chose.
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ืื‘ืœ ืœื ื˜ื•ื‘ ื›ืžื• ื”ืขืฅ ืฉื‘ื—ืจื ื•.
03:52
We then put in plumbing,
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ืื—ืจ ื›ืš ื”ื ื—ื ื• ืืช ื”ืฆื ืจืช,
03:54
electrical and HVAC,
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ื”ื—ืฉืžืœ, ื”ืžื™ื–ื•ื’
03:56
and insulate.
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ื•ื”ื‘ื™ื“ื•ื“.
03:58
Now, spray foam is an excellent insulator -- it fills in all the cracks --
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ืืžื ื ืกืคืจื™ื™ ืงืฆืฃ ื”ื•ื ืžื‘ื•ื“ื“ ืžืฆื•ื™ื™ืŸ ื•ืžืžืœื ืืช ื›ืœ ื”ืกื“ืงื™ื,
04:01
but it is pretty high embodied energy,
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ืื‘ืœ ื”ื•ื ื‘ืขืœ ืื ืจื’ื™ื” ื’ืœื•ืžื” ื“ื™ ื’ื‘ื•ื”ื”.
04:04
and, sprayed-in cellulose or blue jeans
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ืœืขื•ืžืช ื–ืืช, ืกืคืจื™ื™ ืชืื™ืช ืื• ื’'ื™ื ืกื™ื
04:07
is a much lower energy alternative to that.
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ื”ื ืชื—ืœื™ืคื™ื ื”ืžืฉืชืžืฉื™ื ื‘ื”ืจื‘ื” ืคื—ื•ืช ืื ืจื’ื™ื”.
04:09
We also used straw bale
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ื”ืฉืชืžืฉื ื• ื’ื ื‘ื—ื‘ื™ืœื•ืช ืงืฉ
04:11
infill for our library,
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ื‘ืชื•ืจ ืžื™ืœื•ื™ ื‘ืกืคืจื™ื” ืฉืœื ื•,
04:13
which has zero embodied energy.
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ืฉื™ืฉ ื‘ื” ืืคืก ืื ืจื’ื™ื” ื’ืœื•ืžื”.
04:15
When it comes time to sheetrock,
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ื›ืฉืžื’ื™ืข ื”ื–ืžืŸ ืœื›ืกื•ืช ืืช ื”ืงื™ืจื•ืช ื‘ื’ื‘ืก,
04:17
if you use EcoRock it's about a quarter
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ืื ืžืฉืชืžืฉื™ื ื‘EcoRock, ื–ื” ื™ื•ืฆื ื‘ืขืจืš ืจื‘ืข
04:19
of the embodied energy of standard sheetrock.
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ืžื›ืžื•ืช ื”ืื ืจื’ื™ื” ื”ื’ืœื•ืžื” ืฉืœ ื’ื‘ืก ืกื˜ื ื“ืจื˜ื™.
04:22
And then you get to the finishes,
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ื•ืื– ืžื’ื™ืขื™ื ืœื’ื™ืžื•ืจื™ื,
04:24
the subject of all of those "go green" articles,
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ื”ื ื•ืฉื ื”ืขื™ืงืจื™ ืฉืœ ื›ืœ ื”ื›ืชื‘ื•ืช ื”ื™ืจื•ืงื•ืช.
04:27
and on the scale of a house
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ื•ื‘ืกื“ืจ ื’ื•ื“ืœ ืฉืœ ื‘ื™ืช,
04:28
they almost make no difference at all.
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ื”ื ื‘ืงื•ืฉื™ ืžืฉืคื™ืขื™ื.
04:31
And yet, all the press is focused on that.
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ืืš ืขื“ื™ื™ืŸ, ื›ืœ ื”ืชืงืฉื•ืจืช ืžืชืžืงื“ืช ื‘ื”ื.
04:33
Except for flooring.
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ื—ื•ืฅ ืžืจื™ืฆื•ืฃ.
04:35
If you put carpeting in your house,
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ืื ืืชื ืฉืžื™ื ืฉื˜ื™ื—ื™ื ื‘ื‘ื™ืช,
04:37
it's about a tenth of the embodied energy of the entire house,
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ื–ื” ื‘ืขืจืš ืขืฉื™ืจื™ืช ืžื”ืื ืจื’ื™ื” ื”ื’ืœื•ืžื” ื‘ื›ืœ ื”ื‘ื™ืช,
04:40
unless you use concrete or wood
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ืืœื ืื ืืชื ืžืฉืชืžืฉื™ื ื‘ืžืœื˜ ืื• ื‘ืขืฅ
04:42
for a much lower embodied energy.
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ืขื‘ื•ืจ ืื ืจื’ื™ื” ื’ืœื•ืžื” ื ืžื•ื›ื” ื‘ื”ืจื‘ื”.
04:44
So now we add in the final construction energy, we add it all up,
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ืื– ืขื›ืฉื™ื• ืื ื—ื ื• ืžื•ืกื™ืคื™ื ืืช ื”ืื ืจื’ื™ื” ื”ืกื•ืคื™ืช ื‘ื‘ื ื™ื”, ืžืกื›ืžื™ื ืืช ื”ื›ืœ,
04:47
and we've built a house for less than half
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ื•ื™ื•ืฆื ืฉื‘ื ื™ื ื• ื‘ื™ืช ื‘ืคื—ื•ืช ืžื—ืฆื™
04:49
of the typical embodied energy for building a house like this.
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ื”ืื ืจื’ื™ื” ื”ื’ืœื•ืžื” ื”ื ื“ืจืฉืช ื‘ื“ืจืš ื›ืœืœ ืœื‘ื ื™ื™ืช ื‘ื™ืช ื›ื–ื”.
04:52
But before we pat ourselves
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ืืš ืœืคื ื™ ืฉืื ื—ื ื• ืžื—ืžื™ืื™ื ืœืขืฆืžื ื•
04:54
too much on the back,
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ื™ื•ืชืจ ืžื“ื™,
04:56
we have poured 151 megawatt hours
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ื”ืฉืงืขื ื• 151 ืžื™ืœื™ื•ืŸ ื•ื•ืื˜ ืœืฉืขื”
04:59
of energy into constructing this house
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ืฉืœ ืื ืจื’ื™ื” ื‘ื‘ื ื™ื™ืช ื”ื‘ื™ืช,
05:01
when there was a house there before.
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ื›ืฉื›ื‘ืจ ื”ื™ื” ืฉื ื‘ื™ืช ืงื•ื“ื.
05:03
And so the question is:
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ืื– ื”ืฉืืœื” ื”ื™ื:
05:05
How could we make that back?
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ื›ืžื” (ืื ืจื’ื™ื”) ืื ื—ื ื• ื™ื›ื•ืœื™ื ืœื”ื—ื–ื™ืจ?
05:07
And so if I run my new energy-efficient house forward,
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ืื– ืื ืื ื—ื ื• ืžืจื™ืฆื™ื ืืช ื”ื‘ื™ืช ื”ื—ืกื›ื•ื ื™ ื‘ืื ืจื’ื™ื” ืฉืœื ื• ืงื“ื™ืžื”,
05:10
compared with the old, non-energy-efficient house,
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ื‘ื”ืฉื•ื•ืื” ืœื‘ื™ืช ื”ื™ืฉืŸ ื•ื”ืœื ื™ืขื™ืœ ืื ืจื’ื˜ื™ืช,
05:13
we make it back in about six years.
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ืื ื—ื ื• ืžื—ื–ื™ืจื™ื ืืช ื”ืื ืจื’ื™ื” ืชื•ืš ื›ืฉืฉ ืฉื ื™ื.
05:16
Now, I probably would have upgraded the old house
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ืœืขื•ืžืช ื–ืืช, ื™ื›ื•ืœืชื™ ืœืฉื“ืจื’ ืืช ื”ื‘ื™ืช ื”ื™ืฉืŸ
05:18
to be more energy-efficient,
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ืฉื™ื”ื™ื” ื™ื•ืชืจ ืืคืงื˜ื™ื‘ื™ ืžื‘ื—ื™ื ืช ืื ืจื’ื™ื”.
05:20
and in that case,
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ื•ื‘ืžืงืจื” ื–ื”,
05:22
it would take me more about 20 years to break even.
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ื”ื™ื” ืœื•ืงื— ืœื™ ืขื•ื“ 20 ืฉื ื™ื ื›ื“ื™ ืœื”ืฉืชื•ื•ืช.
05:26
Now, if I hadn't paid attention to embodied energy,
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ื•ืื ืœื ื”ื™ื™ืชื™ ืฉืžื” ืœื‘ ืœืื ืจื’ื™ื” ื”ื’ืœื•ืžื”,
05:28
it would have taken us
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ื–ื” ื”ื™ื” ืœื•ืงื— ืœื ื•
05:30
over 50 years to break even
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ื™ื•ืชืจ ืž50 ืฉื ื™ื ืœื”ืฉืชื•ื•ืช
05:32
compared to the upgraded house.
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ื‘ื”ืฉื•ื•ืื” ืœื‘ื™ืช ื”ืžืฉื•ื“ืจื’.
05:34
So what does this mean?
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ืื– ืžื” ื–ื” ืื•ืžืจ?
05:36
On the scale of my portion of the house,
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ื‘ืกื“ืจ ื’ื•ื“ืœ ืฉืœ ื”ื‘ื™ืช ืฉืœื™,
05:39
this is equivalent to about
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ื–ื” ืฉื•ื•ื” ืขืจืš
05:41
as much as I drive in a year,
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ืœื›ืžื” ืฉืื ื™ ื ื•ืกืขืช ื‘ืฉื ื”,
05:43
it's about five times as much
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ื–ื” ื‘ืขืจืš 5 ืคืขืžื™ื ื™ื•ืชืจ
05:45
as if I went entirely vegetarian.
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ืžืืฉืจ ืื™ืœื• ื”ื™ื™ืชื™ ืœื’ืžืจื™ ืฆืžื—ื•ื ื™ืช.
05:47
But my elephant in the living room flies.
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ืืš ื”ืคื™ืœ ื‘ืกืœื•ืŸ ืฉืœื™ ืขืฃ.
05:50
Clearly, I need to walk home from TED.
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ื‘ืจื•ืจ, ืื ื™ ืฆืจื™ื›ื” ืœืœื›ืช ื”ื‘ื™ืชื” ื‘ืจื’ืœ ืžTED.
05:53
But all the calculations
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ืืš ื›ืœ ื”ื—ื™ืฉื•ื‘ื™ื
05:56
for embodied energy are on the blog.
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ืขื‘ื•ืจ ืื ืจื’ื™ื” ื’ืœื•ืžื” ื ืžืฆืื™ื ื‘ื‘ืœื•ื’.
05:58
And, remember, it's sometimes the things that you are not expecting
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ื•ื–ื›ืจื•, ืœืคืขืžื™ื ืืœื” ื”ื“ื‘ืจื™ื ื”ื›ื™ ืคื—ื•ืช ืฆืคื•ื™ื™ื
06:01
to be the biggest changes that are.
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ื”ื ื”ืžื”ื•ื•ื™ื ืืช ื”ืฉื™ื ื•ื™ื™ื ื”ืžืฉืžืขื•ืชื™ื™ื ื‘ื™ื•ืชืจ.
06:04
Thank you. (Applause)
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ืชื•ื“ื”. (ืžื—ื™ืื•ืช ื›ืคื™ื™ื)

Original video on YouTube.com
ืขืœ ืืชืจ ื–ื”

ืืชืจ ื–ื” ื™ืฆื™ื’ ื‘ืคื ื™ื›ื ืกืจื˜ื•ื ื™ YouTube ื”ืžื•ืขื™ืœื™ื ืœืœื™ืžื•ื“ ืื ื’ืœื™ืช. ืชื•ื›ืœื• ืœืจืื•ืช ืฉื™ืขื•ืจื™ ืื ื’ืœื™ืช ื”ืžื•ืขื‘ืจื™ื ืขืœ ื™ื“ื™ ืžื•ืจื™ื ืžื”ืฉื•ืจื” ื”ืจืืฉื•ื ื” ืžืจื—ื‘ื™ ื”ืขื•ืœื. ืœื—ืฅ ืคืขืžื™ื™ื ืขืœ ื”ื›ืชื•ื‘ื™ื•ืช ื‘ืื ื’ืœื™ืช ื”ืžื•ืฆื’ื•ืช ื‘ื›ืœ ื“ืฃ ื•ื™ื“ืื• ื›ื“ื™ ืœื”ืคืขื™ืœ ืืช ื”ืกืจื˜ื•ืŸ ืžืฉื. ื”ื›ืชื•ื‘ื™ื•ืช ื’ื•ืœืœื•ืช ื‘ืกื ื›ืจื•ืŸ ืขื ื”ืคืขืœืช ื”ื•ื•ื™ื“ืื•. ืื ื™ืฉ ืœืš ื”ืขืจื•ืช ืื• ื‘ืงืฉื•ืช, ืื ื ืฆื•ืจ ืื™ืชื ื• ืงืฉืจ ื‘ืืžืฆืขื•ืช ื˜ื•ืคืก ื™ืฆื™ืจืช ืงืฉืจ ื–ื”.

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