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co2
within 25 miles
Feb 3, 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 Marineweatherscienceandroidair pollution monitoringnatureclimate monitoringstemoutdoorsgirl scoutsairsmartphone applicationmobile applicationclimateequityappec2020particulate matterhikingcarbon monoxideiphoneinvestigationglobal warmingenvironmental justiceusaspringcarbon dioxidecitizen sciencebicyclingautumndataair qualitydatabaseclimate changecommunity-based monitoringsummerweather datawinterair quality indexair pollutionenvironmentexperiment

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologyecologmaptreesmappingukenvironmentgreat britiangreat britaintree
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