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co2
within 25 miles
May 21, 2026
9 opportunities found! use fewer search filter criteria to find more opportunities

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 Marinesummerstemhikingcitizen sciencespringexperimentiphoneweathernatureair quality indexautumnoutdoorsdataandroidglobal warmingclimate changeclimateairweather datamobile applicationair pollution monitoringenvironmental justicesmartphone applicationair pollutionsciencebicyclingcommunity-based monitoringenvironmentec2020databaseparticulate matterair qualityinvestigationequitycarbon dioxideappcarbon monoxideusaclimate monitoringwintergirl scouts

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyukmapecologytreestreegreat britainecologmappinggreat britianenvironment
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