# 1. Mass extinction - 2nd Ordovician It all began with climate change. This was not only the beginning, but the catalyst to extinction of life on earth. Many countries lost most if not all of their territories, and both developing and advanced countries alike lost their ability to function as nations, leaving behind only 4.2 billion refugees. Mass immigration led to endless disputes on the borders. Though unconfirmed, rumors of a bloody massacre were widely circulated. Overnight, the existence of mankind fell to ashes. Although there is no clear record or explanation of what actually happened and what or who caused it, one thing is for certain: that on that day, dozens of nuclear bombs were dropped from the sky, threatening earth's ability to harbor life. ![](/files/XFchfS7hwcKXc0nWG8iR) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://whitepaper.collexx.io/english-1/collexx-universe/story/1.-mass-extinction-2nd-ordovician.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.