I remember the film 'The Day After Tomorrow' when the world froze.
The scientists explained it.
Global warming warms the ice caps, they melt, dumping fresh water into the oceans, diluting it. That water runs around the planet in the gulf stream, cooling the planet, forcing it into the next ice age.
Global warming doesn't mean warm - it means a new ice age.
Great exposition, it made me to read around on the subject matter and I found this www.nationalgeographic.com/environment/global-warming/global-warming-overview/
You could read that too in your spare time. Gracias