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co2
within 25 miles
Dec 12, 2025
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 Marinebicyclingiphoneautumncarbon dioxideair pollutionoutdoorsgirl scoutsweatherparticulate mattercommunity-based monitoringsummerequityappandroidinvestigationspringairglobal warmingec2020weather datanaturescienceusaclimate changeenvironmentcitizen sciencestemexperimentair quality indexclimateenvironmental justiceair qualitysmartphone applicationdatamobile applicationdatabaseclimate monitoringair pollution monitoringhikingcarbon monoxidewinter

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologygreat britainecologenvironmentgreat britianukmappingtreesecologymaptree
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