Most environmental organizations are primarily interested in undisturbed landscapes and waters, naturally occurring flora and fauna, and other non-urban natural resources. Proskauer has long been involved with an exceptional group called  GrowNYC, a nonprofit organization dedicated to improving the environmental quality of New York City.

Founded in 1970 after the first Earth Day by Mayor John V. Lindsay, it was initially called the Mayor’s Council on the Environment (formed the same year as the Federal Council on Environmental Quality). GrowNYC, as it is now called, has grown to become a leading driver of environmental programs aimed at New York City residents and visitors.