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co2
within 25 miles
Mar 12, 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 Marinenatureenvironmental justicesmartphone applicationweatheroutdoorscarbon dioxideair pollutionexperimentmobile applicationequityair qualitydatabaseandroidinvestigationclimate changeair pollution monitoringdatacitizen scienceparticulate matterenvironmentstemusaclimate monitoringwinterspringscienceappaircommunity-based monitoringec2020hikingglobal warminggirl scoutsclimatecarbon monoxideair quality indexbicyclingautumnweather dataiphonesummer

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologtreemappinggreat britainenvironmentecologymapgreat britianuktrees
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