Dr. Willie Soon is an independent solar physicist at the Harvard-Smithsonian Center for Astrophysics who has been studying the Sun and its influence on the Earth’s climate for more than a quarter of a century. Polar bears are far less endangered by global warming than by environmentalists dreading ice melt. A good puzzle for polar bear science is to answer the question how polar bears survived during the ice ages, when ice covered coastal zones and large parts of the global ocean. Ice was piled miles deep on land, making it extremely difficult for eco systems to provide enough food.
