Start with high-confidence environmental economics books, then narrow by subgenre or adjacent topics.
Renewable Energy
Professor Bruce Usher, Bruce Usher
Waste Wars
Alexander Clapp
Power Metal
Vince Beiser
The Ecological Plot
John MacNeill Miller
America's Most Sustainable Cities and Regions
John W. W. Day, Charles Hall
The Value of a Whale
Adrienne Buller
Doughnut Economics
Kate Raworth
Less Is More
Jason Hickel