Скачать или смотреть What If Oxygen Rose to 40% Again? The Terrifying Future of Earth

What would happen if Earth’s oxygen levels suddenly increased to 40% again, just like during the Carboniferous Period?

In this deep-dive scientific video, we break down:
🌍 The ancient era when Earth truly had 35–40% oxygen
🔥 Why massive insects grew to the size of eagles and wolves
💥 How the world became a planet of unstoppable fires
🧬 What would happen to humans, animals, and evolution today
🏙️ How cities, weather, and technology would react to a high-oxygen world
⚠️ Whether life could survive this catastrophic change


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