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co2
within 25 miles
Aug 24, 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 Marineairandroidcommunity-based monitoringcarbon dioxideclimatesummerhikinginvestigationequitymobile applicationair pollution monitoringec2020global warmingenvironmentclimate monitoringnatureexperimentenvironmental justiceappspringdatabaseweather datastemautumnwinterparticulate matterair qualityclimate changecarbon monoxideweatherair quality indexoutdoorsusagirl scoutsair pollutioncitizen sciencesciencedataiphonesmartphone applicationbicycling

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologymappingenvironmentmapecologtreesgreat britainecologyuktreegreat britian
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