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co2
within 25 miles
Sep 13, 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 Marineexperimentweathersciencesmartphone applicationnatureair quality indexairglobal warmingair qualityiphonecarbon monoxidesummerenvironmental justicedatabaseclimateusainvestigationequityair pollutionclimate monitoringspringclimate changewinterappbicyclingweather datagirl scoutsec2020environmentcitizen scienceautumndataoutdoorsstemparticulate matterandroidmobile applicationcommunity-based monitoringcarbon dioxidehikingair pollution monitoring

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologytreeecologmappinggreat britaingreat britianmaptreesenvironmentuk
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