This title provides a primer of environmental issues for professionals too busy to go back to school, covering in short lessons such subjects as ecosystems, species, and the fragility of the arctic.

Today a basic understanding of environmental issues has become essential to our daily lives. A professor of biological sciences and author of the American ecology classic Keith County Journal, John Janovy, Jr. provides a primer in environmental issues. In 20 ten-minute lessons Janovy gives readers plain, non-threatening answers to the most basic environmental questions, such as: What is an ecosystem? How many is too many? Why is the Arctic so fragile? Essential reading!