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
Nov 20, 2025
87 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 Marineexperimentwinterclimate changeinvestigationcitizen sciencescienceenvironmentspringhikingsmartphone applicationstemsummerweather dataaircommunity-based monitoringec2020iphoneoutdoorsusadataandroidnaturebicyclingenvironmental justiceappcarbon dioxideair quality indexmobile applicationequitygirl scoutsdatabasecarbon monoxideautumnair pollutionair qualityair pollution monitoringclimateglobal warmingweatherparticulate matterclimate 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 & Environmenttreesurban ecologyclimate changecarbon sequestration
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 & Outdoorsdeerwildflowersforestecologywoodlandstreeswildlifeforest healthseedlings
Airigami
Balloon Breakdown
Help compost 40,000 latex balloons
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentcompostballoonballoonscomposting
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 forest birdsdata treesbell miner associated dieback (bmad) biodiversitybird monitoringlandholdersgondwana world heritagelocations of native bell miner coloniestree health across the northern rivers region of new south walesaustralia
Zooniverse
Buzzy Bee - African Canopy Pollinators
Study pollination of Central African timber species
Anywhere
- Ongoing
Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologyfloral traitstree speciestimber speciescirculating entomofaunapollination flower ecology tree conservation interaction botany insect entomologytropical rainforestsize and composition of pollinators communitiespollen dispersal distances
Casey Trees
To restore, enhance and protect the trees of Washington DC
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologytreeswashington d.c.canopyplantingtree planting
Caterpillars Count!
Monitor the seasonality and abundance of foliage arthropods
Multiple locations, including yours!
- Ongoing
Citizen ScienceInsects & PollinatorsEducationEcology & EnvironmentBiologyNature & OutdoorsAnimalsGeographyinsectsarthropodscsm-featuredbird foodearth2025csm2025phenologycsm2026biodiversitycaterpillars
Chestnut Mega-Transect
Document status of American chestnuts along Appalachian Trail.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentPolicyClimate & WeatherNature & Outdoorscounttreecountingappalachiantrees