Without climate change polar bears would not exist
Patrick Moore, PhD
A great deal of concern has been expressed during the past 30 years that human-caused climate change will render polar bears extinct. This is based entirely on speculation about the future climate rather than actual reductions in the present bear population. In fact, their numbers have increased during the past 50 years.
How many people are aware of the historical fact that there would not be a single polar bear if not for past changes in the climate? And how many know that Earth has been cooling rather steadily during the past 50 million years to become the Pleistocene Ice Age we are living in today? In fact, it was not until about three million years ago that mountain glaciers and freezing of the Arctic Ocean began to occur regularly in the Northern Hemisphere. Until that time there was nowhere on Earth that the present-day polar bear could have lived.