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Artifcial organ regrowth

Youtube, Artificial organ regrowth, http://www.youtube.com/watch?v=ok!"#$$%yw

http://www.youtube.com/watch?v=okJjWG__Cywhttp://www.youtube.com/watch?v=okJjWG__Cywhttp://www.youtube.com/watch?v=okJjWG__Cywhttp://www.youtube.com/watch?v=okJjWG__Cyw

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Something what scientists

might not know

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3

Chlorouorocarbon ( ,CFC)

In late 1!"s, American chemist #homas$i%gle&, 'r s&nthesie% CFCs

CFCs* non+toic, non+ammable, an% non+reacti-e with other chemical com.oun%s/I%eal 0or man& a..lications + as coolants0or commercial an% home re0rigeration

units, electronic cleaning sol-ents, etc

u2ont* tra%emark name Freon

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4orl% 4ar II* success0ull&controlle% t&.hus ( )in5uro.e

Agricultural use o0 # since16

4orl%wi%e malaria( )

era%ication .rogramb& 478 in166

ichloro%i.hen&ltrichloroethane (#)

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5

&'e of (() a'

in'ect 'pray

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thermal insulation, electricalinsulation, soun% absor.tion,

fre.roofng, buil%ing materials, brake

Asbestos( )

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In the 16"s,

aca%emics 0orecastthat b& the &ear !"""we coul% ha-e atwent&+hourworkweek

Instea% o0 re%ucing the workweek, it is0oun% that American workers worke% 19"hours longer each &ear in 1" than

twent& &ears earlier

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A bus& night inCentral

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;

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Inuence o0 Carson

o Cam.aign to ban # in the;nite% States

o 2ublic awareness to en-ironmentalissues

o Conce.t o0 ecos&stem balanceo ?uestionauthorit& an% .olicies

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Core ?uestion*

11

4hat im.acts%oesmani.ulation o0 li0ebring@

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?

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#et>achel Carson, Silent Spring

Cha.ter 9* 5arths

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15

ignorance

arrogance

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16

nfluence of

(arwin

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17

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18

>achel Bouise Carson

0achel 1oui'e %ar'on 23456 7 3489

2from Wikipedia

&.;. *ureau of

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19

2ublications

Under the Sea Wind23493 >pan'ion of fi'herie' bureau brochure Undersea @arrative of the ocean floor ecellent review' but 'ol- poorly

The Sea Around Us2343 1ife hi'tory of the ocean @ational *ook Awar- 34B @ew York )ime' *e't ;eller 1i't for C8 week' %ar'on gave up her !ob to concentrate on writing

The Edge of the Sea234 %oa'tal eco'y'tem receive- highly favorable review'

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20

4hat to write net@

234 + 348 planne- to write a book on

evolutionD but ulian Euley:Evolution inAction publi'he-)he turning point:

2348B the four+year pro!ect - Silent Springpubli'he-

n a letter written in anuary 34C, Flga Fwen' Euckin'

tol- me of her own bitter eperience of a 'mall worl-

ma-e lifele'', an- 'o brought my attention 'harply back

to a problem with which ha- long been concerne-.re'ulting from the

'praying of (() to killmo'uitoe'

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21

Silent Spring

Gubli'he- 348B

;electe- in:

*ook+of+the+onth %lub o-ern 1ibrary 1i't of *e't B5th+%entury

@onfiction 2H

Discover Magazine: B #reate't ;cience*ook' of All )ime

The American Reader Words That Moved a

!ation

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22

Silent Spring

in'pire- wi-e'prea- public

concern' with pe'tici-e'

an- pollution of theenvironment.

facilitate- the ban of the

pe'tici-e (() in 346B in

the &nite- ;tate'.

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23

# as a .estici%e

Dichlorodi.hen&ltrichloroethane(#)

Colorless cr&stalline soli%First s&nthesie% in 1: b&

Austrian chemist 8thmar Dei%ler

2

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!

ichloro%i.hen&ltrichloroethane (#)

In 13, $Eller ( )%isco-ere% # can beuse% as an insectici%e

=obel 2rie laureate in2h&siolog& or $e%icine(1:) for hisdiscovery of the high

eciency of DDT as acontact poison againstseveral arthropods

2aul 7ermann

$Eller (1: G196)

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25

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23498 (() i' Earmle'' to Euman'. http://youtu.be/nGIJ1@;ug

(() ;praying on chil-ren. http://www.youtube.com/watch?v=uf8Kk!*%oL&

http://youtu.be/nP3ZLNSJu5ghttp://www.youtube.com/watch?v=uf6KkjBCoVUhttp://www.youtube.com/watch?v=uf6KkjBCoVUhttp://youtu.be/nP3ZLNSJu5g

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27

ut something the& ha-e toknow

5cological isaster

nter+relate-ne'' of living organi'm' an- their

environmentA foo- chain:

Glankton 2

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28

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29

iomagnifcation

io+magnifcation* concentration o0.oison along the 0oo% chain tolethal le-els

A case in Cali0orniaPesticide Concentration (ppm)

Water 1/50

Plankton 5

Herbivore fish 40 300

arnivore bir! an! fish 1600 an! 2500 res"e#tivel$

M ppm: part' per million. An epre''ion of proportion.

3 ppm i' about 3 -rop of water -ilute- to 5 liter'.

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30

7ealth 7aar%s

irect .oisoning

In animal tests* 3 ..m o0 # inhibits heart muscle

en&me 6 ..m o0 # causes li-er cell

necrosis ( )

In humans* =er-e s&stem %amage (!3 ..m o0

#)

Carcinogenicit&

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31

2estici%es make it worse

>esistance

=atural selection

2estici%es eliminate theweaker members o0 the .est

Create new .ests

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3!

An& alternati-es@

2estici%e is not a goo% solution

Carsons Solutions* iological

control+ Intro%uce natural enemies o0 the.estJwee%

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33

%rabgra'' 2

http://en.wikipe-ia.org/

wiki/%rabgra''

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34

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36

Silent SpringG Im.act

G Al achel Carson was one o0 the reasons that I

became so conscious o0 the en-ironmentan%so in-ol-e% with en-ironmental issues Carsonhas ha% as much or more eKect on me thanan&, an% .erha.s than all o0 them together

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36

nve'tigation into the i''ue by the Gre'i-entN';cience A-vi'ory %ommittee

%ampaign to ban (() in the &nite- ;tate'>nvironmental movementGre'i-ential e-al of nvironmentali'mD 34C5

Silent SpringG Im.act

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3

Silent SpringG Criticism

+ r >obert 4hite+Ste-ens,

biochemist

I0 man were to 0ollow the teachings o0

$iss Carson, we woul% return to theark Ages, an% the insects an%%iseases an% -ermin woul% onceagain inherit the earthL

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A one+'i-e- ca'e

Ouote' only i'olate- ca'e' of ba- effect' of

one or two pe'tici-e', or pe'tici-e mi'u'e

>aggerating the -anger' of (()

0epeate- 'tu-ie' 'howe- no evi-ence that

(() increa'e' cancer ri'kn-irectly wor'ening malaria 2 a' people

avoi- u'ing (()

38

Silent SpringG Criticism

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39

Carsons Begac&

Gublic awarene'' to environmental i''ue'%oncept of eco'y'tem balance

Oue'tion authority an- policie'

iologicalcontrol is a

.er0ect solution

>eall&@

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1"" 4orst In-asi-e S.ecies

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4hat is the 1"1stin-asi-e s.ecies@

#rans.orte% b& humans

8-ercoming ecos&stems

Success0ul establishment

41

7uman acti-it& has 0orce% :9s.ecies into etinction o-er .ast 6""&ears

efnition o0 in-asi-e s.ecies

7omo sa.iens sa.iens

7umans li-e on all continents ece.t Antarct

%

%

%

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!

2on%er on

4ill a-oi%ing chemical .ollutionbring about another 0orm o0

.ollution@7ow can we be sure o0 all the

im.actsJconseMuences o0 our

actions@I0 we cannot .re%ict (.recisel&)

what will ha..en, what an% who

shall gui%e our actions an%

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5nNo& rea%ing