About the Author

JENNIE HOFFMAN, PhD, a professor at the Ocean Research College Academy in Everett, Washington, is a marine biologist and World Wildlife Fund consultant. She specializes in larval ecology, the effects of ultraviolet radiation, and the design of protected landscapes.

TINA TIN, PhD, is a World Wildlife Fund-affiliated climatologist specializing in the impact of climate change in the polar regions. Currently, when she's not at her home in France, she is conducting research on Antarctic sea ice.

GEORGE OCHOA has written or co-written over 25 books, including the New York Public Library's Book of Answers, and The Wilson Chronology of Science and Technology. He lives with his wife and daughter outside New York City.