I have done a lot of research on polar bears and why they are endangered and how we can help.
The first thing that makes polar bears endangered is global warming. Global warming is when all of the ice melts because of greenhouse gases. This is bad because polar bears hunt on the ice so polar bears are starving. Greenhouse gases are caused by cars and other objects. Greenhouse gases are gases that send bad things into the environment.
Poachers are also threatening polar bears and they are killing them for fur and meat.
You can save polar bears by driving less, also unplug your phone if not using charger.