Protect Our Planet Set

What is global warming? Why are forests disappearing? How can air pollution bereduced? This timely series introduces children to key environmental issues ofthe ... » 

What is global warming? Why are forests disappearing? How can air pollution bereduced? This timely series introduces children to key environmental issues ofthe 21st century. The books explore the causes and effects of differentenvironmental crises and ways people are working to reverse humans harmfuleffects on our planet. «