Diamonds. Millions of them, for free. Unfortunately they are microscopic but it turns out they are evidence of a catastrophic climate change that occurred about 13,000 years ago known as the Younger Dryas event. The new discovery is presented in newest journal of geology
The Younger Dryas event was a real Big Freeze, a 1000-yr period of cold climatic conditions and drought leading to global climate change and extinctions. One of the many theories to explain this freeze is that of a comet, or a series of comets striking Earth. However, these comets would also have left evidence of their path through the Earth’s atmosphere- and this is where the nanodiamonds come into the story. This new study has found a number of these nanodiamonds across the world, material that of exactly the correct age, and material that could only have been formed by a large comet crashing into a Earth.
From such a cataclysmic event, diamonds were created in the sky.