U.S. Environmental Protection Agency (EPA)

AirMapper: DIY Air Quality Monitoring

Monitor and understand local air quality

Anywhere

Ongoing

Citizen ScienceClimate & WeatherEcology & EnvironmentHealth & Medicinesensorsmappingair pollutioncarbon dioxideair qualitycommunity scienceatmospheric sciencedata collectiondiyair sensorsenvironmental scienceparticulate matterstem educationenvironmental monitoring

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 Marineair pollutionenvironmental justiceusamobile applicationclimate monitoringnaturewinterinvestigationequitycitizen sciencegirl scoutsairclimate changeautumnscienceenvironmentandroiddatabasecommunity-based monitoringstemair quality indexglobal warmingweatheroutdoorshikingiphoneparticulate matterclimateappdataair qualitycarbon dioxideexperimentbicyclingsmartphone applicationcarbon monoxideair pollution monitoringsummerspringec2020weather data

Natural History Museum

Big Seaweed Search

Explore the distribution of UK and invasive seaweeds.

Multiple locations, including yours!

Ongoing

Citizen ScienceOcean Water MarineEcology & EnvironmentClimate & WeatherNature & OutdoorsBiologyseaweedmarineseashorebeachocean & waterin oceansrockpoolseaweedsat the beachinvasiveukocean conservationseatidepoolbeach walkocean

NASA / Zooniverse

Cloudspotting On Mars

Spot clouds in Mars’ atmosphere.

Anywhere

Ongoing

Citizen SciencePhysicsClimate & WeatherAstronomy & Spacecsm2026csm-featurednasa-sciactnasa-supported_nasa

Tropical Research and Conservation Centre (TRCC)

NIGER DELTA MANGROVE CITIZEN SCIENCE PROJECT.

Enhancing biodiversity management capability among communities

Multiple locations, including yours!

Ongoing

Citizen ScienceEcology & Environmentniger deltamangrove

S.C.R.A.P. Gallery

Step Up To The Plate - Lunch Food Waste Audit

Assess food wasted at lunch with the goal of reducing waste in the future.

Anywhere

Ongoing through June 15, 2027 at 7:00 AM

Citizen ScienceEducationEcology & EnvironmentFoodclimate crisislunch auditclimate changefood waste

Tomatosphere

Teach the skills and processes of scientific experimentation and inquiry

Multiple locations, including yours!

Ongoing

Citizen ScienceBiologyAstronomy & Spaceseedsspacescienceseed industrytomato seedsstemscientific methodtomatoagricultureagriculture industryeducationsteamspace explorationspace seeds

Urban Forest Map

California

Ongoing

Citizen ScienceEcology & EnvironmentComputers & TechnologyClimate & WeatherNature & Outdoors

Filters

U.S. Environmental Protection Agency (EPA)

AirMapper: DIY Air Quality Monitoring

2B Technologies, Inc.

AQTreks (AirQualityTreks)

Natural History Museum

Big Seaweed Search

NASA / Zooniverse

Cloudspotting On Mars

Tropical Research and Conservation Centre (TRCC)

NIGER DELTA MANGROVE CITIZEN SCIENCE PROJECT.

S.C.R.A.P. Gallery

Step Up To The Plate - Lunch Food Waste Audit

Tomatosphere

Urban Forest Map

Share Your Results