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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
Feb 22, 2026
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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 Marinehikingcitizen scienceoutdoorsusaequityappautumncarbon dioxideexperimentspringairclimate changeclimateandroidparticulate matterair pollutionscienceiphonenatureec2020climate monitoringweather dataair pollution monitoringcarbon monoxideair quality indexbicyclingweatherwintersummersmartphone applicationglobal warmingenvironmentmobile applicationenvironmental justiceinvestigationstemgirl scoutsdatabasecommunity-based monitoringdataair quality
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 & Environmentclimate changeurban ecologycarbon sequestrationtrees
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 & Outdoorsseedlingswoodlandsdeerforestwildlifetreeswildflowersecologyforest health
Airigami
Balloon Breakdown
Help compost 40,000 latex balloons
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & Environmentballoonscompostingballooncompost
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 birds biodiversityaustraliatree health across the northern rivers region of new south walesdatabird monitoringbmad affected forestgondwana world heritagelandholderslocations of native bell miner coloniesbell miner associated dieback (bmad) trees
Zooniverse
Buzzy Bee - African Canopy Pollinators
Study pollination of Central African timber species
Anywhere
- Ongoing
Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologytimber speciesfloral traitstropical rainforestpollination flower ecology tree conservation interaction botany insect entomologycirculating entomofaunasize and composition of pollinators communitiespollen dispersal distancestree 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.tree plantingcanopytrees
Caterpillars Count!
Monitor the seasonality and abundance of foliage arthropods
Multiple locations, including yours!
- Ongoing
Citizen ScienceInsects & PollinatorsEducationEcology & EnvironmentBiologyNature & OutdoorsAnimalsGeographycsm-featuredarthropodsphenologybird foodearth2025csm2025caterpillarscsm2026biodiversityinsects
Chestnut Mega-Transect
Document status of American chestnuts along Appalachian Trail.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentPolicyClimate & WeatherNature & Outdoorscountingappalachiantreestreecount