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co2
within 25 miles
Oct 2, 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 Marinestemair qualityequityiphoneclimate monitoringcitizen sciencebicyclingoutdoorsspringair pollutionglobal warmingautumnappmobile applicationair pollution monitoringairweather datasummercarbon dioxideenvironmental justiceec2020androidclimatecarbon monoxideweathersmartphone applicationwinternatureenvironmentcommunity-based monitoringhikingusadatabaseexperimentscienceinvestigationair quality indexgirl scoutsdataclimate changeparticulate matter

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologyenvironmentgreat britianecologyecologmappingtreemapgreat britaintreesuk
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