[Apocalypse] [Sci-Fi] [Superpowers] [Single Heroine] [Survival]
In 2050, greenhouse gas levels reached the limit Earth could withstand.
In 2100, Earth's environment continued to deteriorate. Sulfur dioxide levels surpassed oxygen levels, and Earth saw the first mass extinction of the twenty-second century. Plants and animals, including humans, died in vast numbers, and the disaster spread rapidly.
By 2120, Earth's ecological environment had grown steadily worse, and extreme weather had become the norm. The planet's renewal accelerated, the ozone layer was nearly depleted, and Earth was left riddled with damage. Humanity began developing underground spaces.
In 2050, an asteroid streaked across the sky and crashed into Earth. Oxygen levels reached 25 percent, while carbon dioxide levels hit one percent.
In 2200, the international community chose by lottery to relocate 600 million people to underground bases, declaring 2200 the first year of a new era.
