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co2
within 25 miles
Mar 9, 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 Marineenvironmental justiceusaglobal warmingbicyclingair pollutiongirl scoutsdatabaseclimatecarbon monoxideandroidcitizen sciencenatureexperimentclimate monitoringiphoneweather dataclimate changemobile applicationinvestigationec2020particulate matterwinterautumnair quality indexair pollution monitoringoutdoorsequitysciencecarbon dioxidehikingstemsmartphone applicationsummerair qualityappspringdataenvironmentairweathercommunity-based monitoring

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologymaptreegreat britainecologytreesecologukenvironmentmappinggreat britian
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