Danny Hillis: Should we create a solar shade to cool the earth?
Danny Hillis: Deveríamos criar uma proteção solar para esfriar a Terra?
Inventor, scientist, author, engineer -- over his broad career, Danny Hillis has turned his ever-searching brain on an array of subjects, with surprising results. Full bio
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about engineering our climate]
to build a thermostat
the temperature of the earth
a temperatura da Terra
had a plausible idea about how to do that,
uma boa ideia sobre como fazer isso,
of research on how to do it.
sobre como fazer isso.
do understand how to do that.
sabem como fazer isso.
for research in this area.
para pesquisas nessa área.
misunderstandings about it.
equívocos sobre o assunto.
today that this is a good idea.
de que isso é uma boa ideia.
your curiosity going about it
of the misunderstandings.
da geoengenharia solar
a little bit more sunlight
um pouco mais de luz solar
have been around literally for decades.
these low-lying clouds.
é com as nuvens baixas.
debaixo de uma nuvem.
the same water content
o mesmo teor de umidade
of a change in the flow of the air
mudança no fluxo do ar
which are artificial water clouds
que são nuvens artificiais de água
of a jet engine.
the clouds on earth.
as nuvens na Terra.
by supersecret government conspiracy.
governamental supersecreta.
das rotas marítimas.
clouds to form,
global warming already by about a degree.
o aquecimento global em quase um grau.
about how to do this.
sobre como fazer isso.
out into space
de guarda-sóis gigantes no espaço
very plausible ideas.
by David Keith at Harvard
por David Keith, em Harvard,
up into the stratosphere,
a poeira na estratosfera,
common minerals on earth,
mais comuns na Terra,
we put it into baby food.
que colocamos em comida de bebê.
up into the stratosphere,
jogar cal na estratosfera,
all by itself, dissolved in rainwater.
dissolvida em água de chuva.
about all this chalk in your rainwater,
com a presença de cal na chuva,
how little of it it actually takes.
ela estaria presente.
very easy to calculate.
calculation I made.
much more careful calculations,
cálculos mais cuidadosos,
at the rate of about 10 teragrams a year
teragramas de cal por ano
that we've already done --
do CO2 que causamos...
not all the effects, but the temperature.
não todos os efeitos, só a temperatura.
dez teragramas por ano.
Fire Department and Taylor Milsal
e ao Corpo de Bombeiros de Cambridge
at 10 teragrams a year.
dez teragramas de água por ano.
into the stratosphere
to pre-industrial levels.
em níveis pré-industriais.
it's like one hose for the entire earth.
É uma mangueira para toda a Terra.
really use a hose,
or something like that.
em aviões ou algo do tipo.
putting a handful of chalk
que seria como colocar um punhado de cal
swimming pool full of rain.
não gostam dessa ideia?
very good reasons for that.
we should be talking about this at all.
que deveríamos falar sobre isso.
very good friends in the audience
alguns amigos na plateia,
I should be talking about this.
deveria falar sobre isso.
there's some easy way out,
que há uma solução fácil,
our addiction to fossil fuels.
dos combustíveis fósseis.
a deeper problem,
um problema mais difícil,
of messing with the entire earth --
de mexer com a Terra inteira,
for us to look for ways
procurarmos por meios
the science behind that.
a ciência por trás disso.
that's kind of developed at TED,
what our options are;
nos diga quais são as opções,
our creativity and our caution.
a criatividade quanto a precaução.
about our future selves,
because I think our problems are small.
que os problemas são pequenos.
our capacity to deal with our problems
capacidade de lidar com problemas
a lot of controversy at TED2017,
controvérsias no TED2017,]
to look at discussions online
ABOUT THE SPEAKER
Danny Hillis - Computer theoristInventor, scientist, author, engineer -- over his broad career, Danny Hillis has turned his ever-searching brain on an array of subjects, with surprising results.
Why you should listen
Danny Hillis is an inventor, scientist, author and engineer. While completing his doctorate at MIT, he pioneered the concept of parallel computers that is now the basis for graphics processors and cloud computing. He holds more than 300 US patents, covering parallel computers, disk arrays, forgery prevention methods, various electronic and mechanical devices, and the pinch-to-zoom display interface. He has recently been working on problems in medicine as well. He is also the designer of a 10,000-year mechanical clock, and he gave a TED Talk in 1994 that is practically prophetic. Throughout his career, Hillis has worked at places like Disney, and now MIT and Applied Invention, always looking for the next fascinating problem.
Danny Hillis | Speaker | TED.com