We're in beta! If you find a bug or have feedback, let us know in our issue tracker.

Search Opportunities
co2
within 25 miles
Dec 20, 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 Marinecitizen scienceiphoneappbicyclingwinterweatherglobal warmingclimate changeexperimentparticulate matternatureclimate monitoringcommunity-based monitoringair pollution monitoringcarbon monoxideec2020datagirl scoutscarbon dioxidespringweather dataautumndatabasemobile applicationhikingusainvestigationscienceair qualityairstemair quality indexsmartphone applicationclimateair pollutionenvironmental justiceenvironmentandroidequityoutdoorssummer

Treezilla

Map every tree in Britain

Multiple locations, including yours!

  • Ongoing
Citizen ScienceEcology & EnvironmentNature & OutdoorsComputers & Technologytreeukenvironmentgreat britaintreesmapecologecologymappinggreat britian
1

Share Your Results

Share the list by copying the link below

Copy Link