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PCB stand for polychlorinated biphenyls
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Extinction: The Facts

PCB stand forpolychlorinated biphenyls

PCB stand for
polychlorinated biphenyls

Full Transcript

00:00:01.000 --> 00:00:04.004
PCB stand for polychlorinated biphenyls.
Duration
4 seconds
Views
21
Timestamp in Movie
00:23:58
Uploaded
Jun 03, 2025
Genres
documentary
Production
BBC Studios

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Movie Summary

With a million species at risk of extinction, Sir David Attenborough explores how this crisis of biodiversity has consequences for us all, threatening food and water security, undermining our ability to control our climate and even putting us at greater risk of pandemic diseases.
We invented them in the '20s - Extinction: The Facts 00:09
We invented them in the '20s
They affect the immune system - Extinction: The Facts 00:06
They affect the immune system
If PCBs are not disposed of appropriately, - Extinction: The Facts 00:09
If PCBs are not disposed of appropriately,
Animals at the base of the food chain - Extinction: The Facts 00:05
Animals at the base of the food chain
But then as animals above them eat more and more of the small animals, - Extinction: The Facts 00:07
But then as animals above them eat more and more of the smal...
In the UK, we have one really striking example of that. - Extinction: The Facts 00:04
In the UK, we have one really striking example of that.
The last remaining pod of in-shore killer whales - Extinction: The Facts 00:09
The last remaining pod of in-shore killer whales
That population has been studied for about 30 years. - Extinction: The Facts 00:04
That population has been studied for about 30 years.
She died due to entanglement in fishing gear. - Extinction: The Facts 00:04
She died due to entanglement in fishing gear.
When we had her blubber levels analysed for PCBs, - Extinction: The Facts 00:06
When we had her blubber levels analysed for PCBs,
One of the highest levels ever recorded - Extinction: The Facts 00:06
One of the highest levels ever recorded
And when we looked at her ovaries, we found they were non-functional. - Extinction: The Facts 00:06
And when we looked at her ovaries, we found they were non-fu...
In my lifetime, we're looking potentially at the complete loss - Extinction: The Facts 00:07
In my lifetime, we're looking potentially at the comple...
And then we'll have no more killer whales left - Extinction: The Facts 00:05
And then we'll have no more killer whales left
In addition to these threats, many ecosystems are increasingly feeling - Extinction: The Facts 00:10
In addition to these threats, many ecosystems are increasing...
At this moment, we do have the Paris Agreement - Extinction: The Facts 00:10
At this moment, we do have the Paris Agreement
All of the calculations show we're on track - Extinction: The Facts 00:07
All of the calculations show we're on track
And the more the Earth warms, the worse the problem is. - Extinction: The Facts 00:05
And the more the Earth warms, the worse the problem is.
There are lots of ways that climate change will impact on species - - Extinction: The Facts 00:13
There are lots of ways that climate change will impact on sp...
Increasing temperatures mean some species are unable to survive - Extinction: The Facts 00:07
Increasing temperatures mean some species are unable to surv...