document.addEventListener("DOMContentLoaded", function() { var script = document.createElement("script"); script.src = ""; document.body.appendChild(script); });
top of page

The Future of Urban Sustainability: Understanding Local Law 97 in New York City

Updated: May 25

In the face of increasing global awareness about climate change and its consequences, cities around the world are taking significant steps to address their carbon footprints. New York City, one of the most iconic metropolises in the world, is at the forefront of this movement with the implementation of Local Law 97. This groundbreaking legislation is poised to shape the future of urban sustainability in the city. In this blog post, we will delve into the details of Local Law 97, its significance, and the potential it holds for creating a more sustainable and environmentally friendly New York City.

Understanding Local Law 97

Local Law 97, also known as the Climate Mobilization Act, is a key component of New York City's ambitious plan to reduce its greenhouse gas emissions by 80% by 2050. It was passed in 2019 and is part of a broader package of legislation aimed at combating climate change and promoting sustainability within the city.

The central tenet of Local Law 97 is the establishment of emissions limits for large buildings, which are responsible for a significant portion of the city's carbon emissions. These limits are set based on building type and occupancy, with the goal of reducing emissions across the city's vast building stock. The law covers both residential and commercial properties, making it one of the most comprehensive and impactful pieces of climate legislation in the United States.

Key Provisions of Local Law 97

1. Emissions Caps: Local Law 97 sets annual emissions caps for buildings larger than 25,000 square feet. These caps are set to begin in 2024 and will become progressively more stringent over time, with the ultimate goal of achieving a significant reduction in emissions by 2050.

2. Carbon Trading: To give building owners flexibility in meeting their emissions targets, the law allows for carbon trading. This means that if a building exceeds its emissions limit, it can offset its emissions by purchasing carbon credits from buildings that have achieved emissions reductions beyond their targets.

3. Energy Efficiency Upgrades: Building owners are encouraged to invest in energy-efficient upgrades to meet the emissions caps. Local Law 97 provides financial incentives, such as tax credits and low-interest loans, to help offset the costs of these improvements.

Significance of Local Law 97

Local Law 97 represents a major milestone in urban sustainability efforts for several reasons:

1. Emissions Reduction: By placing limits on emissions from large buildings, the law directly addresses one of the most significant sources of greenhouse gas emissions in New York City. This will contribute significantly to the city's overall emissions reduction goals.

2. Economic Benefits: The law promotes job creation and economic growth by incentivizing energy-efficient upgrades and green building practices. It also supports the development of a local green workforce to implement these changes.

3. Global Influence: New York City's commitment to combating climate change through initiatives like Local Law 97 sets an example for other cities worldwide. It demonstrates that large urban centers can take meaningful steps toward reducing their carbon footprints.

The Future of Urban Sustainability

Local Law 97 is a crucial step in New York City's journey towards a more sustainable and environmentally friendly future. It forces building owners to reevaluate their energy consumption and invest in greener technologies, ultimately leading to a more energy-efficient and climate-resilient urban environment.

As the law's implementation progresses, it is expected to drive innovation in sustainable building practices, foster green job opportunities, and inspire other cities to follow suit. It's a testament to the idea that even the largest and most complex urban environments can take meaningful action to combat climate change.


Local Law 97 represents a significant leap forward in New York City's commitment to urban sustainability and the fight against climate change. By imposing emissions caps on large buildings and incentivizing energy-efficient upgrades, the city is taking bold steps towards achieving its emissions reduction goals. As we look ahead, it is clear that this legislation will play a pivotal role in shaping the future of urban sustainability not only in New York City but also in cities worldwide.


bottom of page