Achieve Your Sustainability & Climate Ambitions
For over 30 years, ICLEI – Local Governments for Sustainability USA (ICLEI USA) is the largest and longest established network of local governments committed to sustainability and climate action.
Join the Network
As an association led by and for our members, we advance sustainable development across interconnected pathways—driving zero-emission, nature-based, equitable, resilient, and circular solutions. We support local governments in turning their ambitions into lasting impact through technical expertise, collaborative networks, and tailored support.
Our Network Leading Sustainability Initiatives
Our Impact
Member Benefits
Customized for your community’s journey
Meet Our New Board Members
We are pleased to announce on March 13, 2025, the following sustainability leaders joined our board.
Alix Desulme
Mayor of North Miami, FL
Jeni Arndt
Mayor of Fort Collins, CO
Nancy Bowen
Vice Mayor of Coral Springs, FL
Nicola Armacost
Mayor of Hastings-on-Hudson, NY
Patricia Lock Dawson
Mayor of Riverside, CA
Victoria Salinas
Former Deputy Administrator for Resilience, Federal Emergency Management Agency
Turn Data into Action
ICLEI USA’s industry-leading tools have helped over 600 governments and institutions measure and mitigate greenhouse gas emissions, prepare for climate impacts, prioritize actions, and collaborate in real-time.
In Spring 2025, we’ll launch the revamped ClearPath 2.0 platform, powered by ClimateView. This next-generation tool combines ICLEI USA’s decades of experience with ClimateView’s cutting-edge technology to help U.S. subnational governments make data-driven decisions, engage stakeholders, and drive transparent climate action.
Stay tuned for more updates!
- Emissions Management
- GHG Contribution Analysis
- Tree Emissions Navigator
Simplify Emissions Management
ClearPath™ is the leading online software platform for completing greenhouse gas inventories, forecasts, climate action plans, and monitoring at the community-wide or government-operations scales.
Identify Emissions Drivers
The GHG Contribution Analysis toolkit will help you understand the of the biggest drivers influencing GHG performance of your communities. Use this approach to evaluate overall progress and understand the nature of your emissions.
Estimate the Impacts of Your Trees and Forests
With relatively simple input, you can get a general understanding of annual emissions and removals from forest and trees outside of forests (urban forests) for your community.
Explore Our Events
Our Approach: The 5 Pathways
The pathways are a framework for designing integrated solutions that balance the patterns of human life and the built and natural environments.
Featured News
Testimonials
"ICLEI [USA] has proven to be a highly skilled and thoughtful partner in our sustainability initiatives. They peer reviewed our draft climate action plan, and were instrumental in the assessment and refinement of our circularity initiatives. Their numerous tools and partner resources, ranging from greenhouse gas emissions inventory tools, to policy guidelines to urban tree canopy data has proven invaluable in our efforts."
“Participating in the ICLEI USA 2024 Climate Risk and Vulnerability Assessment cohort was a very beneficial and worthwhile experience. As I am preparing to begin the process of developing a Climate Vulnerability Assessment and Climate Adaptation and Resilience Plan for my County, the information and tools shared within this cohort by ICLEI staff, guest speakers, and my fellow participants will be tremendously useful. I look forward to continuing to engage with ICLEI in a variety of topic areas relating to my work in sustainability and climate change.”
"ICLEI- Local Governments for Sustainability is the oldest and most effective nonprofit working on climate issues with local governments. They are the leading group that helps local governments create a baseline greenhouse gas inventory (GHGI), which becomes the road map for reducing GHG emissions. They also are one of the most active groups assisting local governments to develop and implement climate action plans, making communities more resilient. And they do this work at a surprisingly low cost. They are my ‘go to’ group for everything climate-related."
"I love the [Land Emissions And Removals Navigator] tool! I found it so easy to use. It’s perfect for a group of volunteers like us who really want to include carbon sequestration information but don’t have the time or money to do a complex analysis. So thank you from Chebeague!"
"Every community should undertake a climate vulnerability assessment and we feel privileged to have ICLEI's support as we launch ours. The assessment will help us plan for changing future conditions. It will also help us make investments now that will ensure the resiliency of our community after we are long gone. Climate adaptation is not a choice—it is a duty!"
“It’s a huge challenge to coordinate a regional climate action plan. Each jurisdiction has different goals and priorities, and we’ve had to make a lot of adjustments throughout the process. ICLEI and SEEC have a lot of great resources. I relied a lot on the protocols and ClearPath guides."
“Our ICLEI memberships have paid dividends far greater than the modest fees required. Beyond the rich library of research and tools to advance climate action, and the networking opportunities with like-minded counterparts in other municipalities; the technical assistance and expert guidance that we received from ICLEI allowed us to leverage internal resources to develop our first GHG inventories under the Global Protocol for Community-Scale Greenhouse Gas Inventories. With our baseline inventories archived in ClearPath, we are now using it to crunch our data and identify the most impactful strategies to reduce and eliminate carbon emissions. I look forward to increasing our utilization of ICLEI’s expanding capabilities.”
“ICLEI membership provides tools for future research, data collection and planning activities. ICLEI’s resources are widely used as the standard for collecting greenhouse gas emissions data and [ClearPath is] a tool that both Clallam County and Jefferson County have used.”
"ICLEI has been a strong partner for the City of Monterey as we work to finalize our Climate Action Plan and implement a wide-ranging suite of measures at the government and community level to reduce our carbon footprint."
