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co2
within 25 miles
Jul 21, 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 Marinewinterdataenvironmental justiceclimate monitoringautumncommunity-based monitoringcarbon monoxideweather dataair pollution monitoringcarbon dioxideair quality indexsmartphone applicationmobile applicationiphoneequityair qualityusadatabasenatureclimatesummerexperimentcitizen scienceenvironmentscienceclimate changeparticulate matterbicyclingappec2020air pollutionweatherstemoutdoorsandroidspringgirl scoutsairhikingglobal warminginvestigation

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologyecologenvironmenttreegreat britaingreat britiantreesmapukmapping
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