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Casey Trees
To restore, enhance and protect the trees of Washington DC
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologyplantingtree plantingcanopywashington d.c.trees
forestry
within 25 miles
May 24, 2026
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City of Chandler
City of Chandler: Eat Mesquite! Desert Foraging Class
Chandler Nature Center Arizona
- June 13, 2026 at 7:00 AM
CommunityGeneral Science
Indiana Phenology
Indiana Backyard Observers
Monitor the phenological events of plants & animals in Indiana.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentClimate & WeatherNature & Outdoorsconservationspeciesraccoonchangekidspondelementaryswampwatchchildbutterflyrestorerecordstreamreptilewaterseasonssalamanderflowerinvasiveseasonaltreeobservenewtchildrenagriculturelegislationspringteachclimatesquirrelmonitorplantfenamphibianhighgrassbirdtrackwinterrestorationbogshrubfallautumnschoollandchangeslaketripsnakedunemammalbeeanimallizardseasonforestkidmiddlefishnativepolicybutterfliesinsectlearnforestryappfrogpollinatorphenologymobilecreeksummermanagementresearchfindeducationconserveriverclassprairiefieldwetland
Fable Forestry
Naughtweed
Protect ecosystems and forest health from invasive plants
Anywhere
- Ongoing
Citizen ScienceNature & OutdoorsEcology & Environment
Epicollect5
Pyrogeography Citizen Science
Build crowdsourced wildfire activity dataset
Anywhere
- Ongoing
Citizen ScienceClimate & WeatherNature & OutdoorsEcology & EnvironmentGeology & Earth ScienceOcean Water MarineGeographyphotography, climate data, forest ecology, citizen science monitoring, forest, grasslands, wildfire, wildfires, oak, forests, citizen scientist, climate, crowd source, grassland, fire ecology, citizen science, forestry
Adventure Scientists
Restoring Our Forests: Finding Rare Disease-Resistant Butternut Trees
Find rare, healthy butternut trees for DNA analysis
Multiple locations, including yours!
- Ongoing through September 30, 2026 at 4:00 AM
Citizen ScienceBiologyNature & OutdoorsEcology & Environmenthiketreeoutsidegenomicsoutdoorsforesthikingednabikingtreesbike
Tempe & Guadalupe Community Tree Map
Achieve a 25% citywide tree and shade canopy by 2040
Multiple locations, including yours!
- Ongoing
Citizen ScienceNature & OutdoorsEcology & EnvironmentBiologytreeplantingtreesurbanforestsurbanforestryplantingprojects
University of Tennessee Knoxville
TreeSnap
Locate threatened trees for scientists to study
Multiple locations, including yours!
- Ongoing
Citizen ScienceBiologyEcology & EnvironmentAgricultureNature & Outdoorsashforest healthhemlockforestnahikingmobile apptreeselmtop 22 in 2022forestrytop2022chestnutwoodsoak
Hamilton Naturalists' Club and Environment Hamilton
Trees Please
Improve Hamilton’s urban forests and air quality.
Multiple locations, including yours!
- Ongoing
Citizen SciencePolicySocial ScienceNature & OutdoorsGeology & Earth ScienceClimate & WeatherBiologyEcology & EnvironmentTransportationurban forestsair qualitytreesnacommunityair pollutioncanadaurban
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