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co2
within 25 miles
Jul 13, 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 Marineiphonedatabaseair quality indexequityexperimentenvironmental justicedatascienceclimateweathergirl scoutsclimate monitoringweather dataair qualityappoutdoorsair pollutionaircarbon dioxidecarbon monoxidewinterair pollution monitoringec2020climate changecommunity-based monitoringandroidcitizen sciencehikingbicyclingspringsteminvestigationenvironmentnaturemobile applicationglobal warmingusaparticulate mattersummersmartphone applicationautumn

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologyecologenvironmentgreat britaingreat britianukmappingmaptreetrees
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