![](https://media.journoportfolio.com/users/2107/images/974446e4-9aba-4b9a-ba7e-9304a3bbad25_max-600.jpg)
Climate change once heated the oceans and caused "The Great Dying"
Most people have heard of climate change, the long-term and rapid changes in weather patterns Earth is experiencing today. But fewer know that the planet has undergone similar climate changes before—with devastating consequences.