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This year, at the end of September, the bottom of the pond fell in the Most region. From the old mine well, toxic substances entered the water and poisoned several tons of fish.
The local tragedy is a small and insignificant reminder of the mass extinctions of (almost) all living things that will plague our planet from time to time. Do people risk dying in the future? Víkend DNES magazine asks questions.
Oxygen as a poison
2.4 billion years ago, our entire planet resembled a poisoned pond in North Bohemia. There was a so-called major oxygen catastrophe. The single-celled bacteria, now called cyanobacteria, then developed photosynthesis.
This method of obtaining energy from solar radiation is used by green plants that grow in the nearest meadow, forest or field. From today’s point of view, actually boring.
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