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co2
within 25 miles
Sep 17, 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 Marineiphonedatabasestemwinterweatherclimate monitoringexperimentbicyclinggirl scoutsec2020carbon dioxidehikingoutdoorsenvironmental justicecarbon monoxideglobal warmingdatacitizen scienceinvestigationspringclimate changesummerair qualityair pollution monitoringair quality indexweather datausamobile applicationautumncommunity-based monitoringappequitysmartphone applicationandroidclimatescienceair pollutionairenvironmentparticulate matternature

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyenvironmentecologyuktreemapgreat britainmappinggreat britiantreesecolog
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