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Why the Deepest Lake on Earth Will Cause a Global Crisis

New Nature

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No AI was used in the visuals, voice, thumbnail or music in this film. Everything was made by real people: a 3D animator, an illustrator, an editor and Michael on narration. Each episode takes weeks to produce. If you have suggestions for improvements, please let me know your feedback in the comments.
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UPDATE since we finished this film: Reports confirmed 400 hectares in the central ecological zone had already started being cleared, for a five-star tourist complex.
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Lake Baikal is the deepest lake on Earth. It holds around 20% of all the unfrozen fresh water on the planet's surface. And right now, piece by piece, it's being sold off.

In this video, we descend through the whole lake, layer by layer, to find out what's actually at the bottom. Ice two metres thick you can drive a truck across. A creature smaller than a grain of rice that filters the entire lake. The only seal on Earth that lives its whole life in fresh water, 2,000km from the nearest ocean. A fish that melts in the sun. And a lake floor where methane freezes into ice that burns when you warm it.

Then we get to the part almost nobody is covering. In December 2025, Russia rewrote the law that had protected Baikal since 1999. Next door, China is running short of fresh water and has been drawing pipeline maps to Baikal for years.

This is the story of how the oldest, deepest lake in the world quietly went up for sale.

Chapters:
0:00 The deepest lake on Earth
0:52 Not a lake, a baby ocean
1:58 The night a village sank
3:35 Ice thick enough to drive on
5:14 What keeps the water clear
6:55 200m: where the seasons stop
8:13 400m: the lake takes a breath
10:16 The seal that shouldn't exist
13:48 800m: the fish that melts
15:29 1,000m: life in the dark
17:23 The bottom: burning ice
19:28 The man who went down
20:22 What Baikal really has
21:01 Why China wants it
22:33 Why Russia is opening it up
25:15 What happens next

Sources:

UNESCO World Heritage listing for Lake Baikal: the 25-million-year age and the 20% of the world's unfrozen fresh water
https://whc.unesco.org/en/list/754/

Roberts et al. (2020), PNAS: how the lake breathes, twice a year, and why the deep water stays oxygenated
https://www.pnas.org/doi/10.1073/pnas...

Yakupova et al. (2023), Genes: the Baikal seal genome, and the still-open question of how it got there
https://www.ncbi.nlm.nih.gov/pmc/arti...

Jackson et al. (2018): the golomyanka, Earth's deepest-swimming freshwater fish, up to 40% lipid
https://pmc.ncbi.nlm.nih.gov/articles...

Granin et al. (2019), Scientific Reports: methane hydrate rising off the lake floor, with photo and video records
https://www.nature.com/articles/s4159...

The Moscow Times: Putin signs the logging law, December 2025
https://www.themoscowtimes.com/2025/1...

The Moscow Times: 87 Russian scientists ask him not to sign
https://www.themoscowtimes.com/2025/0...

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#deepsea #russia #china

20 Comments

@newnaturechannel Creator 3 weeks ago Pinned

@TheMaui2020 2 weeks ago

It's absurd to say it's not a lake because of the way it was formed. It's a large body of fresh water, so it's a lake.

@LimpDisck1t 3 weeks ago

Saimaa in Finland has seals that live their whole life in fresh water in a lake made by ice age.

@Seanroberts-q9o 3 weeks ago

Surely the Aral sea is a history of what draining a sea can do to nature

@west_park7993 2 weeks ago

in 1960s USSR built a plant to manufacture artificial textile fibers. the water was so clean, it did not need purification. then, the waste water was returned back into the lake. the manufacturing suddenly stopped....

@thinkbigcharomariano 3 weeks ago

Nature has a scary way of coming back for what we've done

@QuirkLens 3 weeks ago

Baikal’s value isn’t just the fact that it holds about 20% of the world’s unfrozen surface freshwater. It’s the 25-million-year-old living system that keeps that water clear and oxygenated. How do you price something no technology can rebuild?

@TheAwaeng 3 weeks ago

A big big thank you for the no AI !!

@markopalosaari5094 2 weeks ago

Propably it is not the only fresh water seal. In Finland there is an another one, Saimaannorppa (Pusa saimensis). It is protected and very rare, only 530 individuals.

@globalcompass-news 3 weeks ago

It's truly heartbreaking to see such a unique and ancient ecosystem like Lake Baikal being opened up to potential exploitation. Protecting these natural wonders should be a global priority.

@BlueMaple-pq4pp 3 weeks ago (edited)

the people with power to make a difference are ruining our earth instead

@901DirtyDave 3 weeks ago

Earth already has a perfect pressure release system with volcano and vents on the sea floor. Idon't think adding more holes would go well.

@EarthsHiddenSystems 2 weeks ago

Baikal is fascinating not only because of its depth, but because it functions as an entire living system. The connection between its unique ecology, freshwater reserves, and geopolitics makes this much more than a story about a lake.

@olafmorgenstern6429 3 weeks ago

I have been to Lake Baikal, twice. We should learn from the indigenous people around the world the attitude that is required to preserve such jewels. They have lived with and from Lake Baikal for millennia and know all about sustainability.

@TheLivingCodeScience 2 weeks ago

The Baikal seal surviving entirely in freshwater is incredible, but the bigger story is how climate change and development could threaten such a unique ecosystem.

@jmt97400 2 weeks ago

According to Wikipedia, the average flow rate of the Angara—the lake's only outlet—at Irkutsk is 1,863 m³/s, or 58,752 million m³ per year. Approximately one-quarter of this water volume—about 15,000 million m³—comes from rainfall in the southern part of the basin during the three summer months. Therefore, the Irkutsk dam needs only to allow a lake level fluctuation of less than 50 cm to regulate the outflow.
If 500 million Chinese people each consumed 1.5 liters of bottled water daily, that would amount to 274 million cubic meters—or 4.66 per thousand of the lake's outflow. Clearly, opposition to pumping water from a depth of 400 meters for bottling has nothing to do with protecting the lake. People would do better to fight against the over-exploitation of timber along the lake's shores (Russia has plenty elsewhere), the damage caused by lakeside industries that disregard environmental standards, pollution from residents and tourists, and—above all—the discharge of polluted water and waste into the lake. There is no shortage of space for treatment facilities, though these too are potentially polluting installations. Selling the lake's water will necessitate guaranteeing its absolute purity—thereby restricting its shores and watershed to non-polluting activities—which will protect the lake far better than all the hand-wringing and red tape that inevitably gets flouted.
And let us not forget that the Russians themselves might need water from Lake Baikal if they wish to consume particularly pure water, given the pollution levels across much of their vast territory. There would also be plenty of other customers throughout Asia, or even Africa. Yet, even with 5 billion customers, we would barely tap into 1% of the Angara’s annual flow.

@Forgottenchannels 2 weeks ago

Such a beautifully written and performed video. I was actually unaware and am now happily more enlightened after watching this. Thank you.

@johnwyz1 3 weeks ago

What governments and environmentalists should be doing is breeding the water filtering species of Baikal and cleaning water ways elsewhere in the world with them

@garypippenger202 3 weeks ago

Thank you for this excellent video on Lake Baikal and the several issues around it. It seems impossible that Baikal would be commercialized and/or the water sold to China without anyone noticing! It is good to know substantial support exists for preserving the lake environment.