City Hall is challenging commercial buildings to help clear the air around the five boroughs.
Twenty-two commercial owners and tenants have accepted the NYC Carbon Challenge.
That means they will work to cut their greenhouse gas emissions by 30 percent or more over the next 10 years.
Nearly 30 percent of the city's emissions come from commercial buildings.
The city predicts the challenge will reduce citywide emissions by an additional 60,000 metric tons.
That's equivalent to taking nearly 13,000 cars off the road.
The challenge is part of the city's long-term goal of reducing overall greenhouse gas emissions by 80 percent by 2050.