Polar bears are found in the Arctic. In Arctic there are lots of ice where polar bear lives . But nowadays pollution has been increasing day by day . Like water pollution , Air pollution , Earth pollution and Noise pollution . These pollutions cause Global Warming . And because of Global warming ice is getting melting . Means extinction of polar bear . So the major step to conserve polar bear is to reduce pollutions.
Secondly these air pollution can get reduced by growing more and more trees/plants .