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Ancient Tree Inventory
To build a living database of ancient trees
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsBiologytrees, united kingdom
trees
within 25 miles
Nov 23, 2025
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2B Technologies, Inc.
AQTreks (AirQualityTreks)
Monitor air pollution levels and map air pollution around the US
Multiple locations, including yours!
- Ongoing
Citizen ScienceNature & OutdoorsGeographyEducationCrowd FundingTransportationEcology & EnvironmentComputers & TechnologyClimate & WeatherChemistryOcean Water Marineglobal warmingappair pollutionmobile applicationdatabasesmartphone applicationinvestigationnatureusaweatherautumnec2020hikingwinterair qualityclimateequityandroidbicyclingair pollution monitoringexperimentsciencedataclimate changeiphoneenvironmentparticulate matterstemgirl scoutssummerclimate monitoringcarbon dioxideenvironmental justiceaircitizen scienceweather dataoutdoorscarbon monoxidespringair quality indexcommunity-based monitoring
NC State University | ecoipm.org | YourWildLife.org
A Tree's Life
To learn how climate & urbanization affect tree growth & health
Multiple locations, including yours!
- Ongoing
Citizen ScienceBiologyEducationClimate & WeatherNature & OutdoorsEcology & Environmenttreescarbon sequestrationurban ecologyclimate change
Cornell University/New York Department of Environmental Conservation
AVID (Assessing Vegetation Impacts from Deer)
Monitor the effects of deer browsing on woodland trees and plants
Multiple locations, including yours!
- Ongoing through November 30, 2030 at 8:35 PM
Citizen ScienceAnimalsEcology & EnvironmentNature & Outdoorsecologywoodlandsforestwildflowerswildlifeseedlingsforest healthdeertrees
Airigami
Balloon Breakdown
Help compost 40,000 latex balloons
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentcompostingballooncompostballoons
Northern Rivers Fire and Biodiversity Consortium Inc.
Bell Miner Associated Dieback Best Practice Project
Evaluate the removal of mid-storey density in disturbed forests using prescribed fire, weed control and bush regeneration as a method to restore BMAD affected forest.
Anywhere
- Ongoing
Citizen ScienceEducationEcology & EnvironmentBirds trees birdstree health across the northern rivers region of new south waleslandholdersbmad affected forestgondwana world heritagebird monitoring biodiversityaustraliadatabell miner associated dieback (bmad)locations of native bell miner colonies
Zooniverse
Buzzy Bee - African Canopy Pollinators
Study pollination of Central African timber species
Anywhere
- Ongoing
Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologyfloral traitspollination flower ecology tree conservation interaction botany insect entomologycirculating entomofaunatree speciessize and composition of pollinators communitiespollen dispersal distancestropical rainforesttimber species
Casey Trees
To restore, enhance and protect the trees of Washington DC
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologyplantingwashington d.c.treescanopytree planting
Caterpillars Count!
Monitor the seasonality and abundance of foliage arthropods
Multiple locations, including yours!
- Ongoing
Citizen ScienceInsects & PollinatorsEducationEcology & EnvironmentBiologyNature & OutdoorsAnimalsGeographybird foodarthropodscsm-featuredphenologyinsectscsm2025biodiversitycsm2026caterpillarsearth2025
Chestnut Mega-Transect
Document status of American chestnuts along Appalachian Trail.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentPolicyClimate & WeatherNature & Outdoorstreeappalachiantreescountingcount