Clearly you're living under a rock and have no idea that the sea is absorbing most of the carbon dioxide and is, therefore, getting warmer and warmer. This affects the life of the plankton. It is the plankton that gives us most of our oxygen.

Without oxygen, our species, and many others, will have a hard time breathing.

I suggest you start reading the link below to get a grasp of just how finished our 'industrial civilisation' will be within half a century, and how dead our species will be by the end of the century.

https://skepticalscience.com/