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co2
within 25 miles
May 20, 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 Marineweather datamobile applicationiphonesciencehikingclimategirl scoutsautumnoutdoorscitizen scienceinvestigationequityexperimentsmartphone applicationwinterweatherdataclimate monitoringandroidnatureair pollution monitoringappenvironmental justicestemair quality indexair pollutionair qualityglobal warmingec2020usacommunity-based monitoringsummerairbicyclingdatabaseclimate changeparticulate mattercarbon dioxideenvironmentspringcarbon monoxide

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologtreesmapmappingtreeecologygreat britianukenvironmentgreat britain
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