How it works
About us
Use cases
Photo added to Chilkat River, Alaska, US on Dec 26, 2020
Validate grant funded projects and engage the public with the results. Show visitors what work was done even long after the project has been completed.
Monitor changes in water levels or water quality over time. Record shoreline erosion, impact due to upstream events, or improved water quality due to resotration efforts.
Show visitors which plants are indigenous and which are invasive. Explain why invasive plants are a problem, how they spread, and what's being done to prevent them.
Document prescribed fire areas to show visitors why manicuring forests makes for a healthier ecosystem, or create a baseline dataset for areas prone to storm damage.
Chronologs help organizations recruit volunteers, promote upcoming events, and educate communities about important environmental issues and projects.
45
US States
100k+
Photo submissions
600+
Active chronologs
Photo added to Vernal Pool, District of Columbia, US on Mar 21, 2018
Organizers are able to repurpose the collected photos for any means. Use the steady stream of photos for your social media, add the time lapse videos to your newsletters, validate grant funding, or incorporate the data into your own educational curriculum.
Parks
Schools
Museums
Nature centers
Nature conservancies
Wildlife organizations
Local & state governments
National government organizations
Chronolog is a monitoring tool for parks, nature centers, wildlife organizations, schools, and museums worldwide. With over 100,000 contributors across 300 organizations, Chronolog is on a mission to engage communities with nature while recording important natural changes.
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