Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 35 years later ..

This book is a real eye opener. 35 years later and we're still debating the same issues. Little progress has been made in solving the problems associated with air and water pollution, and growing world population. "No other species has had man's ability to alter the environment. Nor has any other species ever had such destructive environmental impact on a world wide scale. The combined result is a fast-moving population explosion, together with rapid depletion and contamination of the resources on which our species depends.""We have not learned prudence, and this may be our downfall. We have risked modifying our environment, even contaminating it, without knowledge of the effects."These words could have been written yesterday. The future still depends on the choices we make.