We're in beta! If you find a bug or have feedback, let us know in our 
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
Feb 19, 2026
101 opportunities found! use fewer search filter criteria to find more opportunities
Filters
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 Marineusadataairexperimentmobile applicationclimate monitoringparticulate matterautumnweathercommunity-based monitoringequitycarbon monoxideair pollutionsummerscienceinvestigationair quality indexenvironmentair qualitycarbon dioxideandroidnatureenvironmental justiceiphoneec2020citizen sciencestemhikingwinterclimateglobal warmingair pollution monitoringdatabasesmartphone applicationappweather datagirl scoutsclimate changeoutdoorsbicyclingspring
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 & Environmenturban ecologytreescarbon sequestrationclimate 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 & Outdoorstreesforestecologyseedlingswildflowersdeerforest healthwoodlandswildlife
Airigami
Balloon Breakdown
Help compost 40,000 latex balloons
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentballoonballoonscompostingcompost
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 & EnvironmentBirdsbmad affected forestbell miner associated dieback (bmad)landholdersbird monitoring biodiversitydata birdstree health across the northern rivers region of new south walesaustraliagondwana world heritage treeslocations of native bell miner colonies
Zooniverse
Buzzy Bee - African Canopy Pollinators
Study pollination of Central African timber species
Anywhere
- Ongoing
Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologypollen dispersal distancestimber speciescirculating entomofaunasize and composition of pollinators communitiestropical rainforestpollination flower ecology tree conservation interaction botany insect entomologyfloral traitstree species
Casey Trees
To restore, enhance and protect the trees of Washington DC
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologycanopytree plantingplantingtreeswashington d.c.
Caterpillars Count!
Monitor the seasonality and abundance of foliage arthropods
Multiple locations, including yours!
- Ongoing
Citizen ScienceInsects & PollinatorsEducationEcology & EnvironmentBiologyNature & OutdoorsAnimalsGeographyarthropodsearth2025caterpillarsphenologybird foodcsm-featuredcsm2025csm2026biodiversityinsects
Chestnut Mega-Transect
Document status of American chestnuts along Appalachian Trail.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentPolicyClimate & WeatherNature & Outdoorscounttreetreescountingappalachian