TEDGlobal 2010
Lee Hotz: Inside an Antarctic time machine
Li Hoc (Lee Hotz): Unutar antarktičkog vremeplova
Filmed:
Readability: 5.1
623,956 views
Naučni novinar Li Hoc opisuje izvanredan projekat na Zapadnom antarktičkom ledenom pojasu Divajd (WAIS Divide), gde odvažan tim buši led star 10.000 godina u cilju izvlačenja važnih podataka o promeni klime na Zemlji.
Robert Lee Hotz - Journalist
Robert Lee Hotz is the science columnist for the Wall Street Journal, where he writes about cutting-edge research on climate change, cosmology, molecular medicine, the human brain and much more ... He has traveled three times to the South Pole. Full bio
Robert Lee Hotz is the science columnist for the Wall Street Journal, where he writes about cutting-edge research on climate change, cosmology, molecular medicine, the human brain and much more ... He has traveled three times to the South Pole. Full bio
Double-click the English transcript below to play the video.
00:15
Come with me to the bottom of the world,
0
0
3000
Pođite sa mnom na kraj sveta,
00:18
Antarctica,
1
3000
2000
na Antarktik,
00:20
the highest, driest, windiest,
2
5000
2000
najvišu, najsuvlju, najvetrovitiju,
00:22
and yes, coldest region on Earth --
3
7000
3000
i da, najhladniju regiju na Zemlji -
00:25
more arid than the Sahara
4
10000
2000
suvlju od Sahare
00:27
and, in parts, colder than Mars.
5
12000
2000
i na nekim mestima,
hladniju od Marsa.
hladniju od Marsa.
00:29
The ice of Antarctica glows
6
14000
2000
Led na Antarktiku sija
00:31
with a light so dazzling,
7
16000
2000
svetlošću tako sjajnom
00:33
it blinds the unprotected eye.
8
18000
2000
da zaslepljuje nezaštićeno oko.
00:35
Early explorers rubbed cocaine in their eyes
9
20000
2000
Pre su istraživači
utrljavali kokain u oči
utrljavali kokain u oči
00:37
to kill the pain of it.
10
22000
2000
kako bi bol usahnuo.
00:39
The weight of the ice is such that the entire continent
11
24000
3000
Led je toliko težak
da je čitav kontinent
da je čitav kontinent
00:42
sags below sea level, beneath its weight.
12
27000
3000
uronjen ispod površine mora.
00:45
Yet, the ice of Antarctica
13
30000
2000
Taj led na Antarktiku
00:47
is a calendar of climate change.
14
32000
2000
je kalendar klimatskih promena.
00:49
It records the annual rise and fall
15
34000
2000
Beleži godišnji rast i pad
00:51
of greenhouse gases and temperatures
16
36000
2000
temperatura pod efektom staklene bašte
00:53
going back before the onset of the last ice ages.
17
38000
3000
čak iz doba pre nastupanja
poslednjeg ledenog doba.
poslednjeg ledenog doba.
00:56
Nowhere on Earth
18
41000
2000
Nigde drugde na Zemlji
00:58
offers us such a perfect record.
19
43000
3000
promene se ne beleže
tako savršeno.
tako savršeno.
01:01
And here, scientists are drilling
20
46000
2000
Ovde naučnici buše
01:03
into the past of our planet
21
48000
2000
u prošlost naše planete,
01:05
to find clues to the future
22
50000
2000
kako bi pronašli tragove
koji bi ukazali
koji bi ukazali
01:07
of climate change.
23
52000
2000
na budućnost klimatskih promena.
01:09
This past January,
24
54000
2000
Prethodnog januara
01:11
I traveled to a place called WAIS Divide,
25
56000
2000
putovao sam na mesto koje se zove
Zapadni antarktički ledeni pojas Divajd,
Zapadni antarktički ledeni pojas Divajd,
01:13
about 600 miles from the South Pole.
26
58000
2000
na oko 1000 km od Južnog pola.
01:15
It is the best place on the planet, many say,
27
60000
3000
Mnogi kažu da je to
najbolje mesto na planeti
najbolje mesto na planeti
01:18
to study the history of climate change.
28
63000
2000
za proučavanje
istorije klimatskih promena.
istorije klimatskih promena.
01:20
There, about 45 scientists from the University of Wisconsin,
29
65000
3000
Oko 45 naučnika sa
Univerziteta u Viskonsinu
Univerziteta u Viskonsinu
01:23
the Desert Research Institute in Nevada and others
30
68000
3000
i Pustinjskog istraživačkog instituta
u Nevadi i drugih
u Nevadi i drugih
01:26
have been working to answer a central question
31
71000
2000
tamo se bave odgovaranjem
na ključno pitanje
na ključno pitanje
01:28
about global warming.
32
73000
2000
o globalnom zagrevanju.
01:30
What is the exact relationship
33
75000
2000
Kakav je tačan odnos
01:32
between levels of greenhouse gases
34
77000
3000
između nivoa efekta staklene bašte
01:35
and planetary temperatures?
35
80000
2000
i temperatura na planeti?
01:37
It's urgent work. We know that temperatures are rising.
36
82000
3000
Taj posao je vrlo hitan.
Poznato je da temperatura raste.
Poznato je da temperatura raste.
01:40
This past May was the warmest worldwide on record.
37
85000
3000
Maj je ove godine bio
najtopliji na svetskom nivou.
najtopliji na svetskom nivou.
01:43
And we know that levels of greenhouse gases are rising too.
38
88000
3000
Znamo i da se efekat
staklene bašte pogoršava.
staklene bašte pogoršava.
01:46
What we don't know
39
91000
2000
Ono što ne znamo je
01:48
is the exact, precise, immediate
40
93000
2000
tačan, precizan, neposredan
01:50
impact of these changes
41
95000
2000
uticaj tih promena
01:52
on natural climate patterns --
42
97000
2000
na prirodnu klimu -
01:54
winds, ocean currents,
43
99000
2000
vetrove, morske struje,
01:56
precipitation rates, cloud formation,
44
101000
3000
stopu padavina,
formiranje oblaka,
formiranje oblaka,
01:59
things that bear on the health and well-being
45
104000
2000
stvari koje utiču na
zdravlje i blagostanje
zdravlje i blagostanje
02:01
of billions of people.
46
106000
3000
milijardi ljudi.
02:04
Their entire camp, every item of gear,
47
109000
3000
Čitav kamp i svaka stavka opreme
02:07
was ferried 885 miles
48
112000
2000
prevezena je trajektom oko 1.500 km
02:09
from McMurdo Station,
49
114000
2000
iz stanice Makmerdo,
02:11
the main U.S. supply base
50
116000
2000
glavne američke baze za snabdevanje
02:13
on the coast of Antarctica.
51
118000
2000
na samu obalu Antarktika.
02:15
WAIS Divide itself though,
52
120000
2000
Sam pojas Divajd
02:17
is a circle of tents in the snow.
53
122000
3000
je krug šatora u snegu.
02:20
In blizzard winds, the crew sling ropes between the tents
54
125000
3000
Kada duvaju mećavni vetrovi,
ekipa razvuče konopce od šatora do šatora
ekipa razvuče konopce od šatora do šatora
02:23
so that people can feel their way safely
55
128000
3000
kako bi sa sigurnošću napipali put
02:26
to the nearest ice house
56
131000
2000
do najbliže ledene kuće
02:28
and to the nearest outhouse.
57
133000
2000
ili najbliže sporedne zgrade.
02:30
It snows so heavily there,
58
135000
2000
Tamo tako jako pada sneg
02:32
the installation was almost immediately buried.
59
137000
2000
da su instalacije
skoro odmah bile zatrpane.
skoro odmah bile zatrpane.
02:34
Indeed, the researchers picked this site
60
139000
3000
Istraživači su odabrali baš to mesto
02:37
because ice and snow accumulates here
61
142000
2000
upravo zato što se sneg i led
tu najbrže nataloži,
tu najbrže nataloži,
02:39
10 times faster than anywhere else in Antarctica.
62
144000
3000
deset puta brže nego na
bilo kom drugom mestu na Antarktiku.
bilo kom drugom mestu na Antarktiku.
02:42
They have to dig themselves out every day.
63
147000
3000
Svakoga dana moraju
da iskopaju put do napolje.
da iskopaju put do napolje.
02:45
It makes for an exotic
64
150000
2000
Putovanje od kuće do posla
im je prilično
im je prilično
02:47
and chilly commute.
65
152000
2000
egzotično i hladno.
02:49
(Laughter)
66
154000
2000
(Smeh)
02:51
But under the surface
67
156000
2000
Ispod površine
02:53
is a hive of industrial activity
68
158000
3000
je aktivna industrijska košnica
02:56
centered around an eight-million-dollar drill assembly.
69
161000
3000
koja okružuje bušilicu
vrednu 8 miliona dolara.
vrednu 8 miliona dolara.
02:59
Periodically, this drill, like a biopsy needle,
70
164000
3000
S vremena na vreme, ta bušilica,
poput igle za biopsiju,
poput igle za biopsiju,
03:02
plunges thousands of feet deep into the ice
71
167000
3000
zariva se oko 300 m u led
03:05
to extract a marrow of gases
72
170000
2000
kako bi se za analizu
03:07
and isotopes for analysis.
73
172000
3000
izvukla srž zaleđenih gasova.
03:10
Ten times a day, they extract
74
175000
2000
Deset puta dnevno vade
03:12
the 10-foot long cylinder of compressed ice crystals
75
177000
2000
cilindar od tri metra
sa kompresovanim kristalima leda
sa kompresovanim kristalima leda
03:14
that contain the unsullied air and trace chemicals
76
179000
3000
koji sadrže neukaljan vazduh
i tragove hemikalija
i tragove hemikalija
03:17
laid down by snow,
77
182000
2000
koje je sneg zarobljavao
03:19
season after season for thousands of years.
78
184000
3000
svakog godišnjeg doba
hiljadama godina.
hiljadama godina.
03:24
It's really a time machine.
79
189000
2000
To je zapravo vremeplov.
03:26
At the peak of activity earlier this year,
80
191000
3000
Na vrhuncu aktivnosti ove godine,
03:29
the researchers lowered the drill
81
194000
3000
istraživači su svakog dana
bušilicu zarivali
bušilicu zarivali
03:32
an extra hundred feet deeper into the ice every day
82
197000
3000
po 30 m dublje u led,
03:35
and another 365 years
83
200000
2000
i još 365 godina
03:37
deeper into the past.
84
202000
3000
dalje u prošlost.
03:40
Periodically, they remove
85
205000
2000
S vremena na vreme izvade
03:42
a cylinder of ice,
86
207000
2000
cilindar s ledom,
03:44
like gamekeepers popping a spent shotgun shell
87
209000
2000
kao što lovci izvade
praznu čauru
praznu čauru
03:46
from the barrel of a drill.
88
211000
3000
iz cevi.
03:50
They inspect it, they check it for cracks,
89
215000
2000
Ispitaju je, provere
da li ima pukotina,
da li ima pukotina,
03:52
for drill damage, for spalls, for chips.
90
217000
3000
oštećenja od bušenja,
ivera, piljevine.
ivera, piljevine.
03:56
More importantly,
91
221000
2000
Što je najbitnije,
03:58
they prepare it for inspection and analysis
92
223000
2000
oni taj led pripremaju
za ispitivanje i analizu
za ispitivanje i analizu
04:00
by 27 independent laboratories
93
225000
2000
u 27 nezavisnih laboratorija
04:02
in the United States and Europe,
94
227000
2000
u SAD i Evropi,
04:04
who will examine it for 40 different trace chemicals
95
229000
2000
koje će ispitati ostatke 40 različitih
tragova hemikalija
tragova hemikalija
04:06
related to climate,
96
231000
2000
vezanih za klimu,
04:08
some in parts per quadrillion.
97
233000
3000
veličine 10 na -15.
04:11
Yes, I said that with a Q, quadrillion.
98
236000
3000
Da, na -15.
04:14
They cut the cylinders up into three-foot sections
99
239000
2000
Cilindre seku na delove od po metar,
04:16
for easier handling and shipment
100
241000
2000
radi lakšeg rukovanja
04:18
back to these labs,
101
243000
2000
i prenošenja u laboratorije,
04:20
some 8,000 miles from the drill site.
102
245000
3000
nekada udaljene i oko
13.000 km od bušotine.
13.000 km od bušotine.
04:23
Each cylinder
103
248000
2000
Svaki cilindar
04:25
is a parfait of time.
104
250000
3000
je vremenski parfe.
04:28
This ice formed as snow
105
253000
3000
Sneg se pretvorio u led
04:31
15,800 years ago,
106
256000
3000
pre 15.800 godina,
04:34
when our ancestors were daubing themselves with paint
107
259000
3000
kada su se naši preci mazali bojama
04:37
and considering the radical new technology
108
262000
3000
i počeli da koriste novu
04:40
of the alphabet.
109
265000
2000
radikalnu tehnologiju - alfabet.
04:43
Bathed in polarized light
110
268000
2000
Okupan polarnom svetlošću
04:45
and cut in cross-section,
111
270000
2000
i poprečno isečen,
04:47
this ancient ice reveals itself
112
272000
2000
taj drevni led se prikazuje
04:49
as a mosaic of colors,
113
274000
2000
u mozaiku boja,
04:51
each one showing how conditions at depth in the ice
114
276000
3000
koje svaka pokazuju
kako su uslovi duboko u ledu
kako su uslovi duboko u ledu
04:54
have affected this material
115
279000
3000
uticali na taj materijal,
04:57
at depths where pressures can reach
116
282000
3000
na dubinama gde pritisak dostiže
05:00
a ton per square inch.
117
285000
3000
skoro 13,79 mPa.
05:03
Every year, it begins with a snowflake,
118
288000
3000
Svake godine, proces
počinje jednom pahuljom
počinje jednom pahuljom
05:06
and by digging into fresh snow,
119
291000
2000
i kopanjem novog snega vidimo
05:08
we can see how this process is ongoing today.
120
293000
3000
kako se proces danas odvija.
05:11
This wall of undisturbed snow,
121
296000
2000
Ovaj zid netaknutog snega,
05:13
back-lit by sunlight,
122
298000
2000
osvetljen sunčevom svetlošću,
05:15
shows the striations of winter and summer snow,
123
300000
3000
pokazuje pruge zimskog i letnjeg snega,
05:18
layer upon layer.
124
303000
2000
sloj po sloj.
05:22
Each storm scours the atmosphere,
125
307000
3000
Svaka oluja spira atmosferu,
05:25
washing out dust, soot,
126
310000
3000
spira prašinu, čađ,
05:28
trace chemicals,
127
313000
2000
tragove hemikalija,
05:30
and depositing them on the snow pack
128
315000
3000
odlažući ih u paketu snega,
05:33
year after year,
129
318000
2000
godinu za godinom,
05:35
millennia after millennia,
130
320000
2000
milenijum za milenijumom,
05:37
creating a kind of periodic table of elements
131
322000
2000
stvarajući vrstu
periodnog sistema elemenata
periodnog sistema elemenata
05:39
that at this point
132
324000
2000
koji je u ovom trenutku
05:41
is more than 11,000 feet thick.
133
326000
3000
deblji od 3 km.
05:44
From this, we can detect an extraordinary number of things.
134
329000
3000
Iz svega toga možemo
otkriti puno raznih stvari.
otkriti puno raznih stvari.
05:49
We can see the calcium
135
334000
2000
Možemo videti kalcijum
05:51
from the world's deserts,
136
336000
2000
iz svetskih pustinja,
05:53
soot from distant wildfires,
137
338000
2000
čađ iz udaljenih logorskih vatri,
05:55
methane as an indicator of the strength of a Pacific monsoon,
138
340000
3000
metan kao indikator
snage pacifičkog monsuna,
snage pacifičkog monsuna,
05:58
all wafted on winds from warmer latitudes
139
343000
3000
što je sve doletelo s vetrovima
toplijih geografskih širina
toplijih geografskih širina
06:01
to this remote and very cold place.
140
346000
3000
do ovog udaljenog i
vrlo hladnog mesta.
vrlo hladnog mesta.
06:04
Most importantly,
141
349000
2000
Što je najvažnije,
06:06
these cylinders and this snow
142
351000
2000
ti cilindri i taj sneg
06:08
trap air.
143
353000
2000
zarobljavaju vazduh.
06:10
Each cylinder is about 10 percent ancient air,
144
355000
3000
U svakom cilindru ima
oko 10% drevnog vazduha.
oko 10% drevnog vazduha.
06:13
a pristine time capsule
145
358000
2000
To je iskonska vremenska kapsula
06:15
of greenhouse gases -- carbon dioxide,
146
360000
2000
efekata staklene bašte:
ugljen-dikosid,
ugljen-dikosid,
06:17
methane, nitrous oxide --
147
362000
2000
metan, azot-oksid -
06:19
all unchanged from the day that snow formed
148
364000
3000
svi ti gasovi nisu se menjali od dana
06:22
and first fell.
149
367000
2000
kada se taj sneg formirao i pao.
06:24
And this is the object of their scrutiny.
150
369000
3000
To naučnici nadziru.
06:27
But don't we already know
151
372000
2000
Ali zar se već ne zna sve
06:29
what we need to know about greenhouse gases?
152
374000
2000
o efektima staklene bašte?
06:31
Why do we need to study this anymore?
153
376000
2000
Zašto se to i dalje proučava?
06:33
Don't we already know how they affect temperatures?
154
378000
2000
Zar se ne zna već
uticaj na temperaturu?
uticaj na temperaturu?
06:35
Don't we already know the consequences
155
380000
3000
Zar se već ne znaju posledice
06:38
of a changing climate on our settled civilization?
156
383000
3000
klimatskih promena na
našu naseljenu civilizaciju?
našu naseljenu civilizaciju?
06:41
The truth is, we only know the outlines,
157
386000
3000
Istina je da se znaju samo okosnice problema,
06:44
and what we don't completely understand,
158
389000
2000
a ono što nije u potpunosti jasno
06:46
we can't properly fix.
159
391000
2000
ne može se ni popraviti.
06:48
Indeed, we run the risk of making things worse.
160
393000
3000
Dabome, rizikujemo da
stvari pogoršamo.
stvari pogoršamo.
06:51
Consider, the single most successful
161
396000
3000
Uzmimo za primer najuspešniji
06:54
international environmental effort of the 20th century,
162
399000
3000
međunarodni ekološki napor 20. veka,
06:57
the Montreal Protocol,
163
402000
2000
Montrealski protokol,
06:59
in which the nations of Earth banded together to protect the planet
164
404000
3000
u kome su se nacije sveta
udružile da zaštite našu planetu
udružile da zaštite našu planetu
07:02
from the harmful effects of ozone-destroying chemicals
165
407000
3000
od štetnih efekata hemikalija
koje uništavaju ozonski omotač
koje uništavaju ozonski omotač
07:05
used at that time
166
410000
2000
koji se u to vreme koristio
07:07
in air conditioners, refrigerators and other cooling devices.
167
412000
3000
u klima-uređajima, frižiderima
i drugim uređajima za hlađenje.
i drugim uređajima za hlađenje.
07:10
We banned those chemicals,
168
415000
3000
Te hemikalije su bile zabranjene
07:13
and we replaced them, unknowingly,
169
418000
2000
i ne znajući, zamenjene
07:15
with other substances
170
420000
2000
drugim supstancama
07:17
that, molecule per molecule,
171
422000
2000
čiji je svaki molekul
07:19
are a hundred times more potent
172
424000
2000
stostruko jači
07:21
as heat-trapping, greenhouse gases
173
426000
2000
od toplote efekta staklene bašte,
07:23
than carbon dioxide.
174
428000
3000
i od ugljen-dioksida.
07:26
This process requires
175
431000
2000
Proces vađenja leda zahteva
07:28
extraordinary precautions.
176
433000
3000
strašnu predostrožnost.
07:31
The scientists must insure
177
436000
2000
Naučnici moraju da se pobrinu
07:33
that the ice is not contaminated.
178
438000
2000
da se led ne zagadi.
07:35
Moreover, in this 8,000-mile journey,
179
440000
2000
Štaviše, moraju da se postaraju
07:37
they have to insure this ice doesn't melt.
180
442000
2000
da se led na tom putovanju
od 13.000 km ne otopi.
od 13.000 km ne otopi.
07:39
Imagine juggling a snowball across the tropics.
181
444000
3000
Zamislite da bacite
grudvu snega u tropima.
grudvu snega u tropima.
07:43
They have to, in fact,
182
448000
2000
Zapravo, moraju da se
07:45
make sure this ice never gets warmer
183
450000
2000
postaraju da led nikad ne bude
07:47
than about 20 degrees below zero,
184
452000
2000
na temperaturi iznad -20 stepeni;
07:49
otherwise, the key gases inside it will dissipate.
185
454000
3000
u suprotnom bi
gasovi u njemu izvetrili.
gasovi u njemu izvetrili.
07:52
So, in the coldest place on Earth,
186
457000
3000
Na najhladnijem mestu na Zemlji,
07:55
they work inside a refrigerator.
187
460000
3000
naučnici rade unutar frižidera.
07:58
As they handle the ice, in fact,
188
463000
2000
Dok rade s ledom,
08:00
they keep an extra pair of gloves warming in an oven,
189
465000
2000
moraju da drže još jedan
par rukavica koji se zagreva,
par rukavica koji se zagreva,
08:02
so that, when their work gloves freeze
190
467000
2000
kako bi, kada im se
rukavice na rukama zalede
rukavice na rukama zalede
08:04
and their fingers stiffen,
191
469000
2000
i kada im se prsti ukoče,
08:06
they can don a fresh pair.
192
471000
2000
mogli da uzmu par toplih.
08:08
They work against the clock and against the thermometer.
193
473000
3000
Rade protiv vremena
i termometra.
i termometra.
08:11
So far, they've packed up
194
476000
2000
Spakovali su
08:13
about 4,500 feet of ice cores
195
478000
4000
oko kilometar i po slojeva leda
08:17
for shipment back to the United States.
196
482000
2000
za isporuku u SAD.
08:19
This past season,
197
484000
2000
U zadnjem periodu
08:21
they manhandled them across the ice
198
486000
2000
ručno su ih preneli preko leda
08:23
to waiting aircraft.
199
488000
2000
do aviona koji su ih čekali.
08:25
The 109th Air National Guard
200
490000
3000
109. vazdušna nacionalna garda
08:28
flew the most recent shipment of ice
201
493000
2000
prenela je poslednju isporuku leda
08:30
back to the coast of Antarctica,
202
495000
2000
na obale Antarktika,
08:32
where it was boarded onto a freighter,
203
497000
3000
gde je utovarena na teretni brod,
08:35
shipped across the tropics to California,
204
500000
3000
preneta kroz tropsku oblast
sve do Kalifornije,
sve do Kalifornije,
08:38
unloaded, put on a truck,
205
503000
2000
istovarena,
utovarena na kamion,
utovarena na kamion,
08:40
driven across the desert
206
505000
2000
prevezena kroz pustinju
08:42
to the National Ice Core Laboratory in Denver, Colorado,
207
507000
2000
sve do Nacionalne laboratorije za led
u Denveru, u Koloradu,
u Denveru, u Koloradu,
08:44
where, as we speak,
208
509000
2000
gde je u ovom trenutku
08:46
scientists are now slicing this material up
209
511000
2000
naučnici seku na slojeve,
08:48
for samples, for analysis,
210
513000
2000
uzimaju uzorke za analizu
08:50
to be distributed
211
515000
2000
kako bi ih poslali
08:52
to the laboratories around the country
212
517000
2000
u laboratorije širom Amerike
08:54
and in Europe.
213
519000
2000
i Evrope.
08:57
Antarctica was this planet's
214
522000
3000
Antarktik je bio poslednje
09:00
last empty quarter --
215
525000
2000
prazno mesto na planeti -
09:02
the blind spot
216
527000
2000
tamna mrlja u našoj
09:04
in our expanding vision of the world.
217
529000
2000
viziji sveta koji se proširuje.
09:06
Early explorers
218
531000
2000
Prvi istraživači su otplovili
09:08
sailed off the edge of the map,
219
533000
2000
preko ivice karte sveta
09:10
and they found a place
220
535000
2000
i našli mesto na kome se čini
09:12
where the normal rules of time and temperature
221
537000
2000
da uobičajena pravila
vremena i temperature
vremena i temperature
09:14
seem suspended.
222
539000
3000
više ne važe.
09:18
Here, the ice seems a living presence.
223
543000
3000
Led je tamo svakodnevna pojava.
09:21
The wind that rubs against it
224
546000
2000
Vetar koji tamo duva
09:23
gives it voice.
225
548000
3000
ledu daje glas.
09:26
It is a voice of experience.
226
551000
3000
To je glas iskustva.
09:29
It is a voice we should heed.
227
554000
3000
To je glas
koji treba da poslušamo.
koji treba da poslušamo.
09:33
Thank you.
228
558000
2000
Hvala.
09:35
(Applause)
229
560000
4000
(Aplauz)
ABOUT THE SPEAKER
Robert Lee Hotz - JournalistRobert Lee Hotz is the science columnist for the Wall Street Journal, where he writes about cutting-edge research on climate change, cosmology, molecular medicine, the human brain and much more ... He has traveled three times to the South Pole.
Why you should listen
Robert Lee Hotz is the science columnist for the Wall Street Journal, where he explores the world of new research and its impact on society. In his column, he ranges broadly across the research horizon, from climate change, cosmology and molecular medicine, to evolution, neuroeconomics and new insights into the human brain. Hotz was a Pulitzer Prize finalist in 1986 for his coverage of genetic engineering issues, and again in 2004 for his coverage of the space shuttle Columbia accident. Mr. Hotz shared in The Los Angeles Times’ 1995 Pulitzer Prize for articles about the Northridge Earthquake.
Hotz is a director of the Alicia Patterson Foundation, which funds independent journalism projects around the world, and a distinguished writer in residence at New York University. He is the author of Designs on Life, Exploring the New Frontiers of Human Fertility, and a contributor to several books on research issues.
Robert Lee Hotz | Speaker | TED.com