Citizen Science

Citizen science is the collection and analysis of data relating to the natural world. At our park inventories, citizen science volunteers traverse the city collecting and documenting tree data that will be used to advance the field of urban forestry.

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And the Largest Tree is…

After a month of searching far and wide for the largest tree in DC, YOU, our citizen scientists out in the field have brought forward an answer! Throughout this search, …

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Largest Tree Updates

Greetings, citizen scientists! We want to express our heartfelt appreciation to everyone who participated in our Largest Tree search. The response has been overwhelming, with tree enthusiasts from all over …

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These Trees are Larger Than Life

The search to find the largest tree in Washington, DC is well underway, and as the search intensifies, tree enthusiasts across the District have been fervently submitting their contenders for …

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Let’s Find the Largest Tree in DC

People often ask us if we know where to find the largest, or oldest tree in DC – and while there isn’t a whole lot of updated data and information …

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DC i-Tree Ecosystem Analysis Map

i-Tree is a suite of tools developed by the U.S. Forester Service that allows communities and researchers to calculate the dollar value of their urban canopies. Every five years Casey …

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April is Citizen Science Month

Science is our most reliable system for gaining new knowledge. And, citizen science lets us ask new questions, collect data, and discover scientific advancements with your help. April is Citizen …

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Live, Work, or Know Someone in Ward Two? Track Seasonal Changes with Us!

The weather is out of whack these days: many fall events are delayed while signs of spring are popping up earlier than expected – and not all species are changing …

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What is Citizen Science and Why it’s Critical to Our Work

Citizen science is the collection and analysis of data relating to the natural world. At Casey Trees our citizen science volunteers traverse the city collecting and documenting tree data that …

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National Parks Service 2018 Award for Group Volunteer Service

While the number one most satisfying thing to us is a lush canopy for all District residents to enjoy, winning the Group Volunteer Award from a critically important federal partner …

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Heat Mapping Study Featured by DCist

Remember when we called for volunteers to help out with a NOAA driven study on temperature difference throughout the city? And then it rained for (what felt like) the entire …

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Registration is Now Open for Fall Plantings and Events!

It’s that time of year again! This fall, we hope to plant and inventory more than 1,500 trees across the District — with your help! Take a look at our …

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We Need Your Help for an Urban Heat Island Study

Are you interested in helping your neighborhood beat the heat? The National Oceanic and Atmospheric Administration (NOAA) is conducting a field campaign to measure and map the urban heat islands …

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Measure for Pleasure! Volunteer with Casey Trees this Spring and Summer

Join us at one of the many classes, workshops and park inventories throughout the District! Whether you want to get your hands dirty, learn more about trees, or pitch in …

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2017 Park Inventories Recap

Did you know we don’t have a comprehensive inventory of the trees on public park lands? Our tree inventories were designed to ameliorate this by using citizen science volunteers to …

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Not All Who Wander Are Lost – They’re Enjoying Our Fall Colors Routes

As we showcased last week, we built a map of the top 5 showy fall color trees in D.C. With this online map, you can now design routes around dense …