MCKENZIE, Precious . Our Organic Garden . ISBN 978-1-61741-767-2 ; ISBN 978-1-61741-969-0 . LC 2011924813. MCKENZIE, Precious . Water World . diag. map. ISBN 978-1-61741-769-6 ; ISBN 978-1-61741-971-3 . LC 2011924815. WEBB, Barbara L. Endangered! diag. illus. map. ISBN 978-1-61741-772-6 ; ISBN 978-1-61741-974-4 . LC 2011924818. WEBB, Barbara L. Helping Habitats . ISBN 978-1-61741-770-2 ; ISBN 978-1-61741-972-0 . LC 2011924816. WEBB, Barbara L. What Does Green Mean? charts. diag. ISBN 978-1-61741-771-9 ; ISBN 978-1-61741-973-7 . LC 2011924817. ea vol: 24p. (Green Earth Science Discovery Library Series). photos. glossary. index. Websites. CIP. Rourke . 2011. PLB $22.79; pap. $7.95. K-Gr 2 Like the "Green Earth Discovery Library" series (Rourke), these titles introduce simple green-living choices along with science basics. They discuss the harm people have done to the environment and how by implementing eco-friendly changes readers can help save the Earth. The brief, age-appropriate texts deliver excellent information about science concepts, such as the water cycle and ecosystems. Other topics covered include pollution, global warming, organic gardening, water as a resource, endangered and extinct species, habitats, invasive plants, carbon footprints, and living green. Images of pristine landscapes contrast with those of nature blighted by trash and pollution. The close-up shots of wildlife in their natural habitats are especially eye-catching. Recommended for the outstanding photographs and interesting fact-filled text.