In a nutshell, global climate warming, caused by burning fossil fuels
for energy, is melting the sea ice polar bears depend on.
The bears need sea ice to hunt, mate, roam, and, sometimes, den. If the
Arctic continues to warm at its current rates, we will see fewer polar
bears in fewer places across the Arctic, making them more vulnerable to
extinction.
Concern for the climate is normal and addressing climate warming can
feel overwhelming but time and time again, humans have accomplished
things that once seemed impossible. And fortunately, in this case, we
already have the answers we need...