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Transcriber: TED Translators Admin
Reviewer: Rhonda Jacobs
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What is net zero?
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We release 55 gigatons of greenhouse gases
into the air every year.
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To stop global warming,
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we have to get our greenhouse
gas emissions down to zero.
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But for every country
to immediately shut down
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all greenhouse gas-releasing activities
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would be an enormous challenge,
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especially since some countries
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have built up an economic head start
with no restrictions.
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So instead, we can use
an approach called net zero.
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Net zero means that for every molecule
of greenhouse gas we put into the air,
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we also take one out,
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making our net emissions zero.
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Net zero requires us
to make big changes today,
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use less more efficiently,
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and even bigger technological
changes for the future,
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like replacing all greenhouse gas-emitting
activities with clean ones.
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We'll also have to capture
greenhouse gases from the air
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and store them permanently.
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And yet, net zero is our best chance
for a sustainable future.
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[Countdown
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Take action on climate change
at Countdown.ted.com]
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