With all the news about climate change, it can sometimes feel hopeless. But the actions we take do make a difference and can save a species. A [great success story is the bald eagle. By 1963, the population was so devastated by human action that there were only 417 known breeding pairs in the U.S. Today, there are more than 71,400 nesting pairs, and 316,700 individual bald eagles in the lower 48 states — four times as many as there were just 12 years ago in 2009.