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Transcriber: TED Translators Admin
Reviewer: Rhonda Jacobs
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Translator: Patricia Marin
Reviewer: Pablo Giner
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What is net zero?
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Què és el "balanç zero"?
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We release 55 gigatons of greenhouse gases
into the air every year.
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Cada any s'emeten 55 gigatones
de gasos d'efecte hivernacle a l'aire.
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To stop global warming,
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Per aturar el canvi climàtic,
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we have to get our greenhouse
gas emissions down to zero.
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les emissions de gasos hivernacle
s'han de reduir a zero.
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But for every country
to immediately shut down
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Però, per a tots els països,
parar immediatament
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all greenhouse gas-releasing activities
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totes les activitats
que emeten gasos hivernacle
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would be an enormous challenge,
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seria un repte enorme,
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especially since some countries
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sobretot perquè alguns països
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have built up an economic head start
with no restrictions.
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han aconseguit economies davanteres
sense restriccions.
00:26
So instead, we can use
an approach called net zero.
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En canvi, podem implementar
el que s'anomena balanç zero.
00:30
Net zero means that for every molecule
of greenhouse gas we put into the air,
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Balanç zero vol dir que per cada molècula
de gas hivernacle que s'emet a l'aire,
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we also take one out,
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també se'n treu una,
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making our net emissions zero.
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fent que el balanç net de les emissions
sigui zero.
00:40
Net zero requires us
to make big changes today,
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El balanç zero requereix fer
grans canvis avui,
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use less more efficiently,
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utilitzar menys i
de manera més eficient,
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and even bigger technological
changes for the future,
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i requerirà canvis tecnològics més grans
pel futur,
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like replacing all greenhouse gas-emitting
activities with clean ones.
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com substituir les activitats
que emeten gasos hivernacle,
per altres més sostenibles.
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We'll also have to capture
greenhouse gases from the air
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I s'hauran de capturar
els gasos hivernacle de l'aire
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and store them permanently.
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i emmagatzemar-los permanentment.
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And yet, net zero is our best chance
for a sustainable future.
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I tot i això, el balanç zero
és la nostra millor oportunitat
per un futur sostenible.
01:05
[Countdown
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Compte enrere
01:06
Take action on climate change
at Countdown.ted.com]
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Actua contra el canvi climàtic
a Countdown.ted.com
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