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co2
within 25 miles
Sep 11, 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 Marinecitizen scienceglobal warmingenvironmentnaturehikingsummerparticulate matterappcarbon dioxideclimateair pollutionsmartphone applicationiphoneoutdoorscarbon monoxideequityweather datamobile applicationusaandroidclimate changeweatherinvestigationair quality indexautumnec2020dataairair qualityair pollution monitoringsciencecommunity-based monitoringwinterdatabasespringgirl scoutsexperimentbicyclingenvironmental justiceclimate monitoringstem

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologymapgreat britianenvironmentecologytreeukmappingecologtreesgreat britain
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