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co2
within 25 miles
Oct 19, 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 Marinespringiphonesmartphone applicationoutdoorssummerinvestigationcitizen sciencehikingbicyclingair quality indexusadataair qualityair pollutionparticulate mattercarbon dioxidewinternatureappclimate changemobile applicationautumncarbon monoxideec2020environmental justiceglobal warmingweatherandroidweather dataenvironmentairclimate monitoringcommunity-based monitoringclimategirl scoutsdatabasestemequityscienceair pollution monitoringexperiment

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologecologytreegreat britianenvironmentuktreesgreat britainmapmapping
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