Jane Poynter: Life in Biosphere 2

311,641 views ・ 2009-06-16

TED


Please double-click on the English subtitles below to play the video.

00:12
I have had the distinct pleasure
0
12160
3000
00:15
of living inside two biospheres.
1
15160
3000
00:18
Of course we all here in this room live in Biosphere 1.
2
18160
4000
00:22
I've also lived in Biosphere 2.
3
22160
4000
00:26
And the wonderful thing about that is that I get to compare biospheres.
4
26160
4000
00:30
And hopefully from that I get to learn something.
5
30160
3000
00:33
So what did I learn? Well,
6
33160
2000
00:35
here I am inside Biosphere 2, making a pizza.
7
35160
3000
00:38
So I am harvesting the wheat, in order to make the dough.
8
38160
3000
00:41
And then of course I have to milk the goats
9
41160
2000
00:43
and feed the goats in order to make the cheese.
10
43160
3000
00:46
It took me four months in Biosphere 2 to make a pizza.
11
46160
2000
00:48
Here in Biosphere 1, well it takes me about two minutes,
12
48160
3000
00:51
because I pick up the phone and I call and say,
13
51160
2000
00:53
"Hey, can you deliver the pizza?"
14
53160
2000
00:55
So Biosphere 2
15
55160
3000
00:58
was essentially a three-acre,
16
58160
2000
01:00
entirely sealed, miniature world
17
60160
2000
01:02
that I lived in for two years and 20 minutes.
18
62160
3000
01:05
(Laughter)
19
65160
3000
01:08
Over the top it was sealed with steel and glass,
20
68160
2000
01:10
underneath it was sealed with a pan of steel --
21
70160
3000
01:13
essentially entirely sealed.
22
73160
2000
01:15
So we had our own miniature rainforest,
23
75160
2000
01:17
a private beach with a coral reef.
24
77160
2000
01:19
We had a savanna, a marsh, a desert.
25
79160
3000
01:22
We had our own half-acre farm that we had to grow everything.
26
82160
3000
01:25
And of course we had our human habitat, where we lived.
27
85160
3000
01:28
Back in the mid-'80s when we were designing Biosphere 2,
28
88160
3000
01:31
we had to ask ourselves some pretty basic questions.
29
91160
2000
01:33
I mean, what is a biosphere?
30
93160
2000
01:35
Back then, yes, I guess we all know now
31
95160
2000
01:37
that it is essentially the sphere of life around the Earth, right?
32
97160
3000
01:40
Well, you have to get a little more specific than that if you're going to build one.
33
100160
3000
01:43
And so we decided that what it really is
34
103160
3000
01:46
is that it is entirely materially closed --
35
106160
3000
01:49
that is, nothing goes in or out at all, no material --
36
109160
3000
01:52
and energetically open,
37
112160
2000
01:54
which is essentially what planet Earth is.
38
114160
2000
01:56
This is a chamber that was 1/400th the size of Biosphere 2
39
116160
3000
01:59
that we called our Test Module.
40
119160
2000
02:01
And the very first day that this fellow, John Allen,
41
121160
2000
02:03
walked in, to spend a couple of days in there
42
123160
2000
02:05
with all the plants and animals and bacteria that we'd put in there
43
125160
2000
02:07
to hopefully keep him alive,
44
127160
2000
02:09
the doctors were incredibly concerned
45
129160
2000
02:11
that he was going to succumb to some dreadful toxin,
46
131160
2000
02:13
or that his lungs were going to get choked with bacteria or something, fungus.
47
133160
4000
02:17
But of course none of that happened.
48
137160
3000
02:20
And over the ensuing few years,
49
140160
2000
02:22
there were great sagas about designing Biosphere 2.
50
142160
2000
02:24
But by 1991
51
144160
2000
02:26
we finally had this thing built.
52
146160
2000
02:28
And it was time for us to go in
53
148160
2000
02:30
and give it a go.
54
150160
2000
02:32
We needed to know,
55
152160
2000
02:34
is life this malleable?
56
154160
2000
02:36
Can you take this biosphere,
57
156160
2000
02:38
that has evolved on a planetary scale,
58
158160
2000
02:40
and jam it into a little bottle,
59
160160
2000
02:42
and will it survive?
60
162160
2000
02:44
Big questions.
61
164160
2000
02:46
And we wanted to know this both for being able to go somewhere else
62
166160
3000
02:49
in the universe -- if we were going to go to Mars, for instance,
63
169160
3000
02:52
would we take a biosphere with us, to live in it?
64
172160
2000
02:54
We also wanted to know so we can understand more about
65
174160
2000
02:56
the Earth that we all live in.
66
176160
2000
02:58
Well, in 1991 it was finally time for us to go in
67
178160
3000
03:01
and try out this baby.
68
181160
2000
03:03
Let's take it on a maiden voyage.
69
183160
2000
03:05
Will it work? Or will something happen
70
185160
2000
03:07
that we can't understand and we can't fix,
71
187160
4000
03:11
thereby negating the concept of man-made biospheres?
72
191160
4000
03:15
So eight of us went in: four men and four women.
73
195160
3000
03:18
More on that later.
74
198160
2000
03:20
(Laughter)
75
200160
2000
03:22
And this is the world that we lived in.
76
202160
3000
03:25
So, on the top, we had
77
205160
2000
03:27
these beautiful rainforests and an ocean,
78
207160
2000
03:29
and underneath we had all this technosphere, we called it,
79
209160
4000
03:33
which is where all the pumps and the valves
80
213160
2000
03:35
and the water tanks and the air handlers, and all of that.
81
215160
3000
03:38
One of the Biospherians called it "garden of Eden
82
218160
2000
03:40
on top of an aircraft carrier."
83
220160
2000
03:42
And then also we had the human habitat of course,
84
222160
2000
03:44
with the laboratories, and all of that.
85
224160
2000
03:46
This is the agriculture.
86
226160
2000
03:48
It was essentially an organic farm.
87
228160
3000
03:51
The day I walked into Biosphere 2,
88
231160
2000
03:53
I was, for the first time,
89
233160
2000
03:55
breathing a completely different atmosphere
90
235160
3000
03:58
than everybody else in the world,
91
238160
2000
04:00
except seven other people.
92
240160
2000
04:02
At that moment I became part of that biosphere.
93
242160
4000
04:06
And I don't mean that in an abstract sense;
94
246160
3000
04:09
I mean it rather literally.
95
249160
2000
04:11
When I breathed out, my CO2
96
251160
3000
04:14
fed the sweet potatoes that I was growing.
97
254160
4000
04:18
And we ate an awful lot of the sweet potatoes.
98
258160
3000
04:21
(Laughter)
99
261160
2000
04:23
And those sweet potatoes
100
263160
2000
04:25
became part of me.
101
265160
2000
04:27
In fact, we ate so many sweet potatoes
102
267160
2000
04:29
I became orange with sweet potato.
103
269160
2000
04:31
I literally was eating the same carbon over and over again.
104
271160
4000
04:35
I was eating myself in some strange sort of bizarre way.
105
275160
4000
04:39
When it came to our atmosphere, however,
106
279160
2000
04:41
it wasn't that much of a joke over the long term,
107
281160
4000
04:45
because it turned out that we were losing oxygen, quite a lot of oxygen.
108
285160
4000
04:49
And we knew that we were losing CO2.
109
289160
2000
04:51
And so we were working to sequester carbon.
110
291160
3000
04:54
Good lord -- we know that term now.
111
294160
2000
04:56
We were growing plants like crazy.
112
296160
2000
04:58
We were taking their biomass, storing them in the basement,
113
298160
2000
05:00
growing plants, going around, around, around,
114
300160
2000
05:02
trying to take all of that carbon out of the atmosphere.
115
302160
2000
05:04
We were trying to stop carbon from going into the atmosphere.
116
304160
3000
05:07
We stopped irrigating our soil, as much as we could.
117
307160
2000
05:09
We stopped tilling, so that we could prevent greenhouse gasses from going into the air.
118
309160
4000
05:13
But our oxygen was going down faster
119
313160
2000
05:15
than our CO2 was going up, which was quite unexpected,
120
315160
3000
05:18
because we had seen them going in tandem in the test module.
121
318160
3000
05:21
And it was like playing atomic hide-and-seek.
122
321160
3000
05:24
We had lost seven tons of oxygen.
123
324160
2000
05:26
And we had no clue where it was.
124
326160
2000
05:28
And I tell you, when you lose a lot of oxygen --
125
328160
3000
05:31
and our oxygen went down quite far;
126
331160
2000
05:33
it went from 21 percent down to 14.2 percent --
127
333160
3000
05:36
my goodness, do you feel dreadful.
128
336160
3000
05:39
I mean we were dragging ourselves around the Biosphere.
129
339160
3000
05:42
And we had sleep apnea at night.
130
342160
2000
05:44
So you'd wake up gasping with breath,
131
344160
3000
05:47
because your blood chemistry has changed.
132
347160
2000
05:49
And that you literally do that. You stop breathing and then you -- (Gasps) --
133
349160
3000
05:52
take a breath and it wakes you up. And it's very irritating.
134
352160
2000
05:54
And everybody outside thought we were dying.
135
354160
2000
05:56
I mean, the media was making it sound like were were dying.
136
356160
2000
05:58
And I had to call up my mother every other day saying, "No, Mum, it's fine, fine.
137
358160
3000
06:01
We're not dead. We're fine. We're fine."
138
361160
2000
06:03
And the doctor was, in fact, checking us
139
363160
2000
06:05
to make sure we were, in fact, fine.
140
365160
2000
06:07
But in fact he was the person who was most susceptible to the oxygen.
141
367160
4000
06:11
And one day he couldn't add up a line of figures.
142
371160
2000
06:13
And it was time for us to put oxygen in.
143
373160
4000
06:17
And you might think, well,
144
377160
2000
06:19
"Boy, your life support system
145
379160
2000
06:21
was failing you. Wasn't that dreadful?"
146
381160
2000
06:23
Yes. In a sense it was terrifying.
147
383160
4000
06:27
Except that I knew I could walk out the airlock door
148
387160
3000
06:30
at any time, if it really got bad,
149
390160
2000
06:32
though who was going to say, "I can't take it anymore!"?
150
392160
3000
06:35
Not me, that was for sure.
151
395160
2000
06:37
But on the other hand, it was the scientific gold of the project,
152
397160
4000
06:41
because we could really crank this baby up,
153
401160
2000
06:43
as a scientific tool,
154
403160
2000
06:45
and see if we could, in fact, find
155
405160
2000
06:47
where those seven tons of oxygen had gone.
156
407160
3000
06:50
And we did indeed find it.
157
410160
2000
06:52
And we found it in the concrete.
158
412160
2000
06:54
Essentially it had done something very simple.
159
414160
2000
06:56
We had put too much carbon in the soil in the form of compost.
160
416160
3000
06:59
It broke down; it took oxygen out of the air;
161
419160
2000
07:01
it put CO2 into the air; and it went into the concrete.
162
421160
3000
07:04
Pretty straightforward really.
163
424160
2000
07:06
So at the end of the two years
164
426160
2000
07:08
when we came out, we were elated,
165
428160
2000
07:10
because, in fact, although you might say
166
430160
3000
07:13
we had discovered something that was quite "uhh,"
167
433160
3000
07:16
when your oxygen is going down,
168
436160
2000
07:18
stopped working, essentially, in your life support system,
169
438160
3000
07:21
that's a very bad failure.
170
441160
2000
07:23
Except that we knew what it was. And we knew how to fix it.
171
443160
3000
07:26
And nothing else emerged
172
446160
2000
07:28
that really was as serious as that.
173
448160
2000
07:30
And we proved the concept, more or less.
174
450160
2000
07:32
People, on the other hand, was a different subject.
175
452160
3000
07:35
We were -- yeah I don't know that we were fixable.
176
455160
3000
07:38
We all went quite nuts, I will say.
177
458160
2000
07:40
And the day I came out of Biosphere 2,
178
460160
2000
07:42
I was thrilled I was going to see all my family and my friends.
179
462160
4000
07:46
For two years I'd been seeing people through the glass.
180
466160
3000
07:49
And everybody ran up to me.
181
469160
2000
07:51
And I recoiled. They stank!
182
471160
4000
07:55
People stink!
183
475160
2000
07:57
We stink of hairspray and underarm deodorant,
184
477160
3000
08:00
and all kinds of stuff.
185
480160
2000
08:02
Now we had stuff inside Biosphere to keep ourselves clean,
186
482160
3000
08:05
but nothing with perfume.
187
485160
2000
08:07
And boy do we stink out here.
188
487160
3000
08:10
Not only that,
189
490160
2000
08:12
but I lost touch of where my food came from.
190
492160
4000
08:16
I had been growing all my own food.
191
496160
3000
08:19
I had no idea what was in my food, where it came from.
192
499160
3000
08:22
I didn't even recognize half the names in most of the food that I was eating.
193
502160
3000
08:25
In fact, I would stand for hours in the aisles of shops,
194
505160
3000
08:28
reading all the names on all of the things.
195
508160
2000
08:30
People must have thought I was nuts.
196
510160
2000
08:32
It was really quite astonishing.
197
512160
6000
08:38
And I slowly lost track
198
518160
3000
08:41
of where I was in this big biosphere, in this big biosphere that we all live in.
199
521160
4000
08:45
In Biosphere 2 I totally understood
200
525160
3000
08:48
that I had a huge impact on my biosphere, everyday,
201
528160
4000
08:52
and it had an impact on me,
202
532160
2000
08:54
very viscerally, very literally.
203
534160
2000
08:56
So I went about my business:
204
536160
2000
08:58
Paragon Space Development Corporation,
205
538160
2000
09:00
a little firm I started with people while I was in the Biosphere,
206
540160
2000
09:02
because I had nothing else to do.
207
542160
2000
09:04
And one of the things we did was
208
544160
2000
09:06
try to figure out: how small can you make these biospheres,
209
546160
2000
09:08
and what can you do with them?
210
548160
2000
09:10
And so we sent one onto the Mir Space Station.
211
550160
3000
09:13
We had one on the shuttle and one on the International Space Station,
212
553160
3000
09:16
for 16 months, where we managed to produce
213
556160
2000
09:18
the first organisms to go through
214
558160
2000
09:20
complete multiple life cycles in space --
215
560160
2000
09:22
really pushing the envelope
216
562160
2000
09:24
of understanding how malleable
217
564160
2000
09:26
our life systems are.
218
566160
3000
09:29
And I'm also proud to announce
219
569160
2000
09:31
that you're getting a sneak preview -- on Friday we're going to announce
220
571160
3000
09:34
that we're actually forming a team
221
574160
2000
09:36
to develop a system to grow plants on the Moon,
222
576160
3000
09:39
which is going to be pretty fun.
223
579160
2000
09:41
And the legacy of that is a system that we were designing:
224
581160
3000
09:44
an entirely sealed system to grow plants to grow on Mars.
225
584160
4000
09:48
And part of that is that we had to model
226
588160
2000
09:50
very rapid circulation of CO2
227
590160
4000
09:54
and oxygen and water through this plant system.
228
594160
3000
09:57
As a result of that modeling
229
597160
2000
09:59
I ended up in all places,
230
599160
2000
10:01
in Eritrea, in the Horn of Africa.
231
601160
3000
10:04
Eritrea, formerly part of Ethiopia,
232
604160
3000
10:07
is one of those places that is astonishingly beautiful,
233
607160
5000
10:12
incredibly stark, and I have no understanding
234
612160
4000
10:16
of how people eke out a living there.
235
616160
2000
10:18
It is so dry.
236
618160
2000
10:20
This is what I saw.
237
620160
2000
10:22
But this is also what I saw.
238
622160
2000
10:24
I saw a company that had
239
624160
3000
10:27
taken seawater
240
627160
3000
10:30
and sand, and they were growing
241
630160
3000
10:33
a kind of crop that will grow on pure salt water without having to treat it.
242
633160
4000
10:37
And it will produce a food crop.
243
637160
2000
10:39
In this case it was oilseed.
244
639160
2000
10:41
It was astonishing. They were also producing mangroves
245
641160
3000
10:44
in a plantation.
246
644160
2000
10:46
And the mangroves were providing wood
247
646160
2000
10:48
and honey and leaves for the animals,
248
648160
2000
10:50
so that they could produce milk and whatnot,
249
650160
2000
10:52
like we had in the Biosphere.
250
652160
2000
10:54
And all of it was coming from this: shrimp farms.
251
654160
4000
10:58
Shrimp farms are a scourge on the earth,
252
658160
2000
11:00
frankly, from an environmental point of view.
253
660160
2000
11:02
They pour huge amounts of pollutants into the ocean.
254
662160
3000
11:05
They also pollute their next-door neighbors.
255
665160
3000
11:08
So they're all shitting each other's ponds, quite literally.
256
668160
3000
11:11
And what this project was doing
257
671160
3000
11:14
was taking the effluent of these,
258
674160
2000
11:16
and turning them into all of this food.
259
676160
2000
11:18
They were literally turning pollution into abundance for a desert people.
260
678160
5000
11:23
They had created an industrial ecosystem, of a sense.
261
683160
4000
11:27
I was there because I was actually modeling the mangrove portion
262
687160
4000
11:31
for a carbon credit program, under the U.N.
263
691160
2000
11:33
Kyoto Protocol system.
264
693160
2000
11:35
And as I was modeling this mangrove swamp,
265
695160
2000
11:37
I was thinking to myself, "How do you put a box around this?"
266
697160
3000
11:40
When I'm modeling a plant in a box, literally,
267
700160
3000
11:43
I know where to draw the boundary.
268
703160
2000
11:45
In a mangrove forest like this I have no idea.
269
705160
3000
11:48
Well, of course you have to draw the boundary around the whole of the Earth.
270
708160
3000
11:51
And understand its interactions with the entire Earth.
271
711160
3000
11:54
And put your project in that context.
272
714160
5000
11:59
Around the world today we're seeing an incredible transformation,
273
719160
5000
12:04
from what I would call a biocidal species,
274
724160
4000
12:08
one that -- whether we intentionally or unintentionally --
275
728160
3000
12:11
have designed our systems to kill life, a lot of the time.
276
731160
4000
12:15
This is in fact, this beautiful photograph,
277
735160
4000
12:19
is in fact over the Amazon.
278
739160
2000
12:21
And here the light green are areas of massive deforestation.
279
741160
5000
12:26
And those beautiful wispy clouds
280
746160
2000
12:28
are, in fact, fires, human-made fires.
281
748160
4000
12:32
We're in the process of transforming from this,
282
752160
3000
12:35
to what I would call a biophilic society,
283
755160
4000
12:39
one where we learn to nurture society.
284
759160
3000
12:42
Now it may not seem like it, but we are.
285
762160
3000
12:45
It is happening all across the world,
286
765160
3000
12:48
in every kind of walk of life,
287
768160
2000
12:50
and every kind of career
288
770160
2000
12:52
and industry that you can think of.
289
772160
4000
12:56
And I think often times people get lost in that.
290
776160
3000
12:59
They go, "But how can I possibly find my way in that?
291
779160
3000
13:02
It's such a huge subject."
292
782160
2000
13:04
And I would say that the small stuff counts. It really does.
293
784160
4000
13:08
This is the story of a rake in my backyard.
294
788160
5000
13:13
This was my backyard,
295
793160
2000
13:15
very early on, when I bought my property.
296
795160
2000
13:17
And in Arizona, of course, everybody puts gravel down.
297
797160
3000
13:20
And they like to keep everything beautifully raked. And they keep all the leaves away.
298
800160
4000
13:24
And on Sunday morning the neighbors leaf blower comes out,
299
804160
3000
13:27
and I want to throttle them.
300
807160
2000
13:29
It's a certain type of aesthetic.
301
809160
3000
13:32
We're very uncomfortable with untidiness.
302
812160
3000
13:35
And I threw away my rake.
303
815160
4000
13:39
And I let all of the leaves fall from the trees that I have on my property.
304
819160
4000
13:43
And over time, essentially what have I been doing?
305
823160
2000
13:45
I've been building topsoil.
306
825160
2000
13:47
And so now all the birds come in. And I have hawks.
307
827160
2000
13:49
And I have an oasis.
308
829160
4000
13:53
This is what happens every spring. For six weeks,
309
833160
4000
13:57
six to eight weeks, I have this flush of green oasis.
310
837160
3000
14:00
This is actually in a riparian area.
311
840160
2000
14:02
And all of Tucson could be like this
312
842160
2000
14:04
if everybody would just revolt and throw away the rake.
313
844160
3000
14:07
The small stuff counts.
314
847160
4000
14:11
The Industrial Revolution -- and Prometheus --
315
851160
3000
14:14
has given us this, the ability to light up the world.
316
854160
5000
14:19
It has also given us this,
317
859160
2000
14:21
the ability to look at the world from the outside.
318
861160
4000
14:25
Now we may not all have
319
865160
2000
14:27
another biosphere that we can run to,
320
867160
2000
14:29
and compare it to this biosphere.
321
869160
3000
14:32
But we can look at the world,
322
872160
2000
14:34
and try to understand where we are in its context,
323
874160
5000
14:39
and how we choose to interact with it.
324
879160
4000
14:43
And if you lose where you are in your biosphere,
325
883160
3000
14:46
or are perhaps having a difficulty connecting
326
886160
2000
14:48
with where you are in the biosphere,
327
888160
2000
14:50
I would say to you,
328
890160
3000
14:53
take a deep breath.
329
893160
3000
14:56
The yogis had it right.
330
896160
2000
14:58
Breath does, in fact, connect us all
331
898160
3000
15:01
in a very literal way.
332
901160
2000
15:03
Take a breath now.
333
903160
2000
15:05
And as you breathe, think
334
905160
2000
15:07
about what is in your breath.
335
907160
4000
15:11
There perhaps is the CO2 from the person sitting next-door to you.
336
911160
5000
15:16
Maybe there is a little bit of oxygen
337
916160
2000
15:18
from some algae on the beach not far from here.
338
918160
5000
15:23
It also connects us in time.
339
923160
3000
15:26
There may be some carbon in your breath
340
926160
4000
15:30
from the dinosaurs.
341
930160
3000
15:33
There could also be carbon that you are exhaling now
342
933160
5000
15:38
that will be in the breath
343
938160
4000
15:42
of your great-great-great-grandchildren.
344
942160
3000
15:45
Thank you. (Applause)
345
945160
2000

Original video on YouTube.com
About this website

This site will introduce you to YouTube videos that are useful for learning English. You will see English lessons taught by top-notch teachers from around the world. Double-click on the English subtitles displayed on each video page to play the video from there. The subtitles scroll in sync with the video playback. If you have any comments or requests, please contact us using this contact form.

https://forms.gle/WvT1wiN1qDtmnspy7