Portuguese 
Spanish 
With Five Cascading Dams and Record Generation, Chinese Megaproject in Tibet Raises Alerts About Environmental Impact and Geopolitical Tension
China began on July 19 a project that promises to surpass all limits of hydraulic engineering. With a budget of 167 billion dollars, the new project will feature five cascading dams.
The estimate is that the annual energy generation will reach 300 billion kWh, almost three times more than the Three Gorges Dam.
The plan extends to 2030. When completed, the structure will become the largest hydroelectric project in the world. The construction reinforces China’s goal to advance energy transition and reduce fossil fuel use. But the new dam does not come without controversies.
-
Brazilian scientists are simultaneously advancing two research projects on clean hydrogen and driving solutions that could transform the energy matrix, enhance industrial competitiveness, and accelerate large-scale emission reduction targets.
-
Advancement in renewable energy: A R$ 150 million project launched by Petrobras and Finep aims to create state-of-the-art electrolyzers for green hydrogen, strengthening national research and preparing Brazil to compete in a billion-dollar energy market.
-
Illiterate or semi-literate grandmothers were trained to repair solar systems, open rural workshops, and light up homes that still depended on kerosene.
-
The world has bet on green hydrogen as the fuel of the future, but now faces the side effect: producing 1 kilogram requires about 9 liters of ultrapure water, and the largest projects on the planet are precisely in the driest regions of the Earth, where water is already scarce for people.
More Energy, More Tension
The project will be built in Tibet, a region that already concentrates political and environmental tensions. Countries like India and Bangladesh have expressed concern about the possible effects on water supply and the environmental balance of the river.
The fear is not unwarranted. The Three Gorges Dam, built years ago, caused measurable effects on the Earth.
According to NASA, the planet’s rotation has slowed by 0.06 microseconds per day. Additionally, the Earth’s axis has shifted by 2 centimeters. All of this due to the enormous mass of water accumulated—about 40 billion cubic meters.
Risks Beyond the Axis
Even though the physical effects are nearly imperceptible to the global population, the regional impacts draw attention.
Residents and environmentalists warn of the risk of earthquakes, environmental collapse, and loss of biodiversity.
Tibet is an area of great geological sensitivity. Concentrating such a large amount of water there generates tension among residents.
The volume of the new structure will be even greater than that of the previous dam. This reinforces the fear that the effects may also be multiplied.
Largest Dam in the World
If everything goes as planned, China will take the global lead in hydroelectric production. The new dam will become the largest on the planet.
But in the meantime, the debate over the collateral effects continues to grow—both in the region and on the international stage.
With information from Xataka.
