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co2
within 25 miles
Sep 8, 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 Marineiphoneparticulate matterautumnair pollutioninvestigationwinterexperimentscienceandroidweatherenvironmental justiceclimate monitoringstemmobile applicationcitizen scienceair pollution monitoringsummerequityspringusacommunity-based monitoringdatadatabaseair qualityhikinggirl scoutssmartphone applicationairoutdoorsnaturebicyclingcarbon dioxideair quality indexenvironmentclimateweather dataglobal warmingec2020carbon monoxideclimate changeapp

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologymappingmapgreat britianecologytreeecologuktreesenvironmentgreat britain
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