U.S. investors are beginning to smell an opportunity in the waste-to-energy market, where livestock dung and food garbage is traded. Interest is being fueled by new state laws and by demand from companies such as UPS Inc.

After a lull in investor interest stretching back a decade, attention to “anaerobic digestion” waste-to-energy is surging in the United States, developers in the sector have said.

Renewable fuel options are drawing increasing investor demand amid concerns about climate change and environmental, social and governance issues, especially in Europe.

By Patrick Temple-West, Los Angeles Times