Much SF is concerned with environmental issues, from dead oceans (e.g., TIMESCAPE) to calorie shortages (most of Paolo Bacigaluppi), to global warming. In the best of these books -- unlike most SF movies, which goes for simple disaster -- attention is paid to the need to balance the concerns of various forces. You can't change one part of the environmental equation without affecting other parts.

A real-life version of this is playing out right now with regard to wolves in the West. Since t...