U.S. Environmental Protection Agency (EPA)

AirMapper: DIY Air Quality Monitoring

Monitor and understand local air quality

Anywhere

Ongoing

Citizen ScienceClimate & WeatherEcology & EnvironmentHealth & Medicineair pollutionenvironmental sciencemappingair qualityair sensorscarbon dioxidedata collectionatmospheric sciencecommunity sciencesensorsdiyparticulate matterstem educationenvironmental monitoring

The Riverfly Partnership

Anglers Riverfly Monitoring Initiative (ARMI)

early warning system for acute river pollution incidents

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & EnvironmentEducationAnimalsInsects & PollinatorsNature & OutdoorsClimate & WeatherOcean Water MarineBiologyriverflieskick samplingmacroinvertebrtesanglers riverfly monitoring initiativeriverfly monitoringriverfly partnershiparmi

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 Marineweathersmartphone applicationgirl scoutsair pollutionec2020mobile applicationappspringdatabaseglobal warmingsummercommunity-based monitoringair pollution monitoringstemclimateiphoneinvestigationautumnandroidparticulate matteroutdoorsweather datawinterdataexperimentnatureequityenvironmental justiceusaclimate monitoringcitizen scienceclimate changeenvironmentairhikingcarbon dioxidecarbon monoxidescienceair qualitybicyclingair quality index

The Music Lab at Yale University

Are You a Super-Listener?

Determine ability to differentiate harmonic categories by ear.

Anywhere

Ongoing

Citizen ScienceSoundPsychologyyale music lab

Astronomy On Tap

Astronomy on Tap Leiden: The Universe’s Ghosts and Ripples

Culture Café Leidse Lente

October 26, 2026 at 7:00 PM through 9:00 PM

Community

Astronomy On Tap

Astronomy on Tap – Orlando Event #36: Red Planet Ice and the Asteroids Beyond

Bruder Brewery & Kitchen FL

November 6, 2026 at 12:00 AM through 2:00 AM

Community

Astronomy On Tap

Astro on Tap Victoria: The Golden Age of Astronomy & How to Build a Planet

The Vicious Poodle BC

November 20, 2026 at 2:00 AM through 4:00 AM

Community

Bird Conservation Network

Bird Conservation Network Survey

Help map bird distribution in the Greater Chicago region.

Illinois

Ongoing

Citizen ScienceEcology & EnvironmentBirdsAnimalsNature & Outdoorsillinoisebirdchicago

British Trust for Ornithology

BirdTrack

Help researchers investigate migration of birds.

Anywhere

Ongoing

Citizen ScienceBiologyEcology & EnvironmentBirdsAnimalsNature & Outdoorsandroidmigration phenologycitizen scienceappbirdingdragonfliesbirdiphoneipadmammalsbird migrationbirds of conservation concernbird watchingmigrant birdsunited kingdombirdwatchingirelandbird recording

Pocket Science Citizen Science Apps (DDQ B.V.)

Black Hole Finder

Help astronomers to find and measure newly formed black holes

Anywhere

Ongoing

Citizen ScienceAstronomy & Spaceuniverseblackholesimaging

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U.S. Environmental Protection Agency (EPA)

AirMapper: DIY Air Quality Monitoring

The Riverfly Partnership

Anglers Riverfly Monitoring Initiative (ARMI)

2B Technologies, Inc.

AQTreks (AirQualityTreks)

The Music Lab at Yale University

Are You a Super-Listener?

Astronomy On Tap

Astronomy on Tap Leiden: The Universe’s Ghosts and Ripples

Astronomy On Tap

Astronomy on Tap – Orlando Event #36: Red Planet Ice and the Asteroids Beyond

Astronomy On Tap

Astro on Tap Victoria: The Golden Age of Astronomy & How to Build a Planet

Bird Conservation Network

Bird Conservation Network Survey

British Trust for Ornithology

BirdTrack

Pocket Science Citizen Science Apps (DDQ B.V.)

Black Hole Finder

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