https://mythsofthemirror.com/2019/03/01/march-speculative-fiction-prompt/

They are gone. All of them. I am alone on this planet. A planet now little more than a dustbin of old dreams of what could have been. They didn’t heed the warnings of what was to come without change.

Perhaps, it would have happened anyway. The change in the atmosphere was a warning, dismissed as fake news, until it wasn’t. The storms grew more violent, the sea raged over embankments, sea levels rose exponentially, displacing millions of families and communities around the planet. Fierce and deadly land wars began, food shortages were everywhere. All signs that something terrible was about to happen.

It started slowly at first. The air began to lose oxygen gas, nitrogen gas, and argon gas. It was replaced with greenhouse gases released from fossil fuels: nitrous oxide, carbon dioxide, and methane. The Atmosphere, Biosphere, and the Geosphere showed overwhelming signs that complete degeneration would…