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co2
within 25 miles
May 7, 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 Marinecitizen scienceenvironmental justiceweather datadataclimate monitoringnatureappsummerdatabaseiphoneandroidair qualitycarbon dioxidehikingoutdoorsequityexperimentsciencemobile applicationair pollution monitoringec2020air quality indexenvironmentgirl scoutsautumnclimateparticulate matterwintercommunity-based monitoringspringstembicyclingairclimate changeair pollutionglobal warmingweatherinvestigationcarbon monoxideusasmartphone application

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologymapgreat britianukgreat britaintreeecologecologymappingtreesenvironment
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