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co2
within 25 miles
Dec 15, 2025
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 Marinesciencesummerec2020databaseenvironmentcommunity-based monitoringair quality indexweather databicyclingsmartphone applicationwinterweatherclimatecarbon monoxideappstemaircarbon dioxideclimate changemobile applicationcitizen scienceoutdoorsinvestigationglobal warmingclimate monitoringexperimentautumnair qualityiphoneusaenvironmental justicegirl scoutsnatureparticulate matterhikingair pollution monitoringspringequitydataandroidair pollution

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyecologmaptreeecologygreat britiantreesukenvironmentgreat britainmapping
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