Few people know, but once oxygen almost destroyed all life on the Earth. Its excessive amount led to the so-called oxygen catastrophe and caused the largest ice age – the Huronian glaciation. RBC-Ukraine tells what is known about Snowball Earth, the oxygen catastrophe, the Huronian glaciation, and the mass extinction of all living things on the planet. Sources used during preparation of the material: Big Think, Wikipedia. What’s Snowball Earth Snowball Earth is a hypothesis suggesting that our planet could have been completely covered in ice about 720-542 million years ago \- during various pe…