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May 22, 2026

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University of Freiburg

3Dtrees.earth

Collect data and tools for LiDAR-based forest monitoring

Anywhere

Ongoing

Citizen ScienceEcology & EnvironmentGeographyComputers & Technologycomputer visionremote sensingmonitoringdronesforestlidarinventoryscanning

Ancient Tree Inventory

To build a living database of ancient trees

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentNature & OutdoorsBiologytrees, united kingdom

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 Marinespringexperimentequityoutdoorsweather datagirl scoutssummerusaec2020sciencecarbon dioxideair qualityair pollution monitoringenvironmentweatherappdatabaseair pollutionairclimate changecitizen scienceandroidparticulate mattercommunity-based monitoringstemwinterair quality indexglobal warmingdataclimate monitoringiphonebicyclingenvironmental justicenatureautumnclimatesmartphone applicationmobile applicationinvestigationcarbon monoxidehiking

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 & Environmenttreesclimate changeurban ecologycarbon 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 & Outdoorswoodlandsecologyforestseedlingsdeerwildflowerstreesforest healthwildlife

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 & EnvironmentBirds biodiversitybell miner associated dieback (bmad)tree health across the northern rivers region of new south walesdata birdsbird monitoringlandholdersaustralialocations of native bell miner coloniesbmad affected forest treesgondwana world heritage

Zooniverse

Buzzy Bee - African Canopy Pollinators

Study pollination of Central African timber species

Anywhere

Ongoing

Citizen ScienceInsects & PollinatorsEcology & EnvironmentBiologytree speciespollen dispersal distancestropical rainforestsize and composition of pollinators communitiespollination flower ecology tree conservation interaction botany insect entomologytimber speciescirculating entomofaunafloral traits

Casey Trees

To restore, enhance and protect the trees of Washington DC

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsBiologycanopywashington d.c.tree plantingtreesplanting

Caterpillars Count!

Monitor the seasonality and abundance of foliage arthropods

Multiple locations, including yours!

Ongoing

Citizen ScienceGeographyAnimalsNature & OutdoorsBiologyEcology & EnvironmentEducationInsects & Pollinatorscsm-featuredinsectsbiodiversityphenologycsm2025arthropodscaterpillarsearth2025csm2026bird food

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