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co2
within 25 miles
Aug 5, 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 Marineweatheriphoneclimatedataenvironmentweather dataair pollutionair qualityexperimentusaclimate monitoringenvironmental justicegirl scoutsclimate changeparticulate matternaturecommunity-based monitoringstemequitysummerairspringhikingcarbon dioxideautumnec2020androidair pollution monitoringsciencebicyclingwinterdatabaseinvestigationsmartphone applicationmobile applicationcarbon monoxideappoutdoorsglobal warmingair quality indexcitizen science

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyenvironmentecologtreetreesgreat britainmappingecologymapukgreat britian
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