Biodiversity "is a growing area of interest for our clients as well as for our investment teams. I expect it to be a continuing theme in 2023 and beyond," said Erin Bigley, chief responsibility officer for AllianceBernstein LP in New York, with $658 billion under management. Also gearing up in 2023 is the Advance initiative from the United Nations-supported Principles for Responsible Investment, which describes itself as the largest collaborative stewardship initiative on social issues and human rights.