Providing information, education and assistance to land use decision makers, in support of balancing growth and natural resource protection.
New and Upcoming
New Story Map

Connections to Long Island Sound
Exploring the land and people in the Long Island Sound Watershed. The Story Map, created in collaboration with the Long Island Sound Partnership, characterizes the land and people in the watershed, and shares the stories of nine people and their connection to the land and water.
It is as a finalist in the 2025 ArcGIS StoryMaps Competition! Check it out and vote for the community choice award (look for Connections to Long Island Sound)!
News & Updates
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New Land Cover (Part 2): Land Cover Change and Trends in the Long Island Sound Watershed -
New Land Cover (Part 1): Map Viewer and Data Dashboards for CT and Beyond -
Focusing on fertilizer: A new tool to help target lawn fertilizer outreach -
State Plane Coordinate System 2022: What’s to Come -
Red Flag Warning: Understanding Connecticut’s Wildfire Ecology, Forest Health, and Planning for a Changing Future -
Connecticut’s Lidar and Orthoimagery Revisited
CT ECO Advanced Viewer

Advanced Viewer on CT ECO
The CT ECO website provides maps and geographic data for CT. Map Viewers are a popular way to view and interact with the information and the Advanced Viewer v2 is now available.
What’s Legally Required?
Mike Zizka has collaborated with UConn CLEAR on the printing of his latest (8th) edition of What's Legally Required?: A Guide to the Legal Rules for Making Local Land Use Decisions in the State of Connecticut. This 273 page book is the definitive reference guide for land use planners and commissioners in the State of Connecticut. Mike Zizka donates all proceeds from the sale to CLEAR programs.
Participation & Impacts Survey

We need you! – The CLEAR 2025 Impact Survey
Did you use or participate in CLEAR trainings, webinars, workshops, websites, maps, tools, apps, or data in 2025? If so, we would greatly appreciate you taking a few minutes to share your feedback and what you may have gained/learned.
Your input helps us improve our programming but, more importantly, helps us argue for continued financial support! Can you help us out?
Land Use Academy

Land Use Commissioner Training
The Land Use Academy (LUA) provides practical education for critical local land use decision makers, focusing on the fundamental knowledge and skills needed to serve effectively on a local land use commission through our webinars and workshops.
Rain Garden Certificate Course

This course designed to provide guidance on how to properly site, size, install, and maintain rain gardens. There are 7 modules to be viewed at your own pace, with practice quizzes on the material for each module and a final course exam.
Upcoming CLEAR Webinars
Focusing on fertilizer: A new tool to help target lawn fertilizer outreach
Thursday, February 26, 2026 – 1 PM Presenters: Qian “Rachel” Lei-Parent and David Dickson, UConn CLEAR Nitrogen (N) from residential lawn fertilizer is one of the most challenging and persistent problems impacting the health of Long Island Sound (LIS). An interdisciplinary team of researchers from Clark University, UConn, the University of Maryland, and the University […]
Upcoming Events

If not explictly stated otherwise, start_date/today and end_date/6 months are implied in the URL.
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Feb26Focusing on fertilizer: A new tool to help target lawn fertilizer outreach1:00 PM
Webinar: Join Qian “Rachel” Lei-Parent and David Dickson from UConn CLEAR for a webinar focused on how Nitrogen from residential lawn fertilizer is one of the most challenging and persistent problems impacting the health of Long Island Sound.
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Mar5New Land Cover (Part 1): Map Viewer and Data Dashboards for CT and Beyond1:00 PM
Webinar: Join Emily Wilson and Qian “Rachel” Lei-Parent from UConn CLEAR to preview a new tool for viewing land cover change in Connecticut and the entire Long Island Sound Watershed (5 states!).
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Mar19New Land Cover (Part 2): Land Cover Change and Trends in the Long Island Sound Watershed1:00 PM
Webinar: Join Dave Dickson, Emily Wilson, and Qian “Rachel” Lei-Parent for Part 2 of CLEAR’s updated land cover tracking project. This webinar will highlight what the data tells us about how our landscape has changed from 1985 –2023 in the whole watershed and explore land cover trends within the 300ft riparian zone along our waterways.
Featured Projects
CT MS4 Guide
CT NEMO is providing tools, training and other support to communities facing new stormwater rules under the MS4 general permit.
CLEAR Story Map Gallery
Story Maps combine interactive maps with photos, videos, graphics and more. From bears to breakwaters, we’ve got something for you here. Check it out!
Imagery on CT ECO
Check out the statewide 2023 high resolution aerial imagery, with 2026 planned for the spring, on CT ECO website!
Adapt CT
A CLEAR partnership with Connecticut Sea Grant providing outreach, tools and learning opportunities focused on climate adaptation in Connecticut communities.
Featured Story Maps
Program Areas
Water
Land use is a major determinant of both water quality and water quantity. CLEAR has several projects and programs focusing on the impact of urbanization on water resources.
Land & Climate
Land use is the bottom line! At CLEAR we have research, tools and outreach programs to help people make more informed land use decisions that protect their natural resources and make them more resilient to a changing climate.
Mapping
CLEAR's mapping expertise is focused on remote sensing analysis, development of online geospatial land use tools, and training for professionals and others in the use of various types of geospatial technology.
STEM
Connecting Connecticut high school students, adult volunteers and teachers with conservation efforts at the community level.







