Global warming, climate change, any other name you wish to call it, is just a bunch of meaningless words. Is the human race destroying the the environment they currently enjoy, of course, you have to be blind, deaf and totally ignorant not to think so.
This planet is a fraction of an amazing universe, it has never relied on humans to exist or survive, never will.
I understand your scared, most normal people wish those that follow in our footsteps can enjoy the environment we have now.
We destroy our playground
We kill of the human race
But once again the world survives
As a new species emerges
For the wheel of life
Just keeps on turning
Time never ending.
https://www.nationalgeographic.com/news/2017/12/polar-bear-starving-arctic-sea-ice-melt-climate-change-spd/#
You do understand that the polar bears eat Better when the ice shelf breaks up. Their prey is to hard to catch on the shelf ice for them to eat well.
When the Ice breaks up, the seals are significantly easier to catch. Polar bears swim for miles to find food, so the break up is dinner time.