Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Important, Interesting Look at Marine Environment.

Scientist Rachel Carson (1907-1964) writes lovingly about the sea in this award-winning 1951 effort. Carson describes what we knew about the sea at that time, and makes the underwater world come alive with her heartfelt descriptions. She mentions the threats to the environment (particularly from pesticides), and readers may want to become preservation minded merely from the author's descriptions. Sadly, much environmental damage has occurred since she penned these pages. Some say this book is a combination of literature and science; others find her style a bit thick. Either way, these words come from the heart, and this book should be of great interest to students of marine and/or environmental biology. Carson also wrote two more best-sellers on the sea (Edge of the Sea, The Sea Wind) plus Silent Spring, which spurred the ban on DDT.