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Big Cat Falls
Lions and tigers, oh my. Here you’ll find our family of large and endangered cats from around the world.
Philadelphia, Pennsylvania
- Ongoing
ExhibitionAnimalsEcology & Environment
snow
within 25 miles
Sep 21, 2026
18 opportunities found! use fewer search filter criteria to find more opportunities
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UC Davis Tahoe Environmental Research Center
Citizen Science Tahoe
Collect observations on water, algae, and litter around Lake Tahoe.
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & WeatherEcology & EnvironmentGeology & Earth ScienceNature & OutdoorsOcean Water Marinedritahoe environmental research centerkeep tahoe bluetrashucdavistahoestories in the snowlake tahoelittertruckeeleague to save lake tahoewater colorwater qualityuc davisdesert research institutealgae
CoCoRaHS: Community Collaborative Rain, Hail and Snow Network
Provide weather data to meteorologists
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & Weatherhurricaneec2020csm-featuredtop2022rain gauge_nasasnowgirl scoutscooperhailcsm2025the crowd and the cloudtop 22 in 2022csm2026earth2025food securitynational weather servicerain
The Community Collaborative Rain, Hail and Snow Network.
Community Collaborative Rain, Hail and Snow Network of Maine
Gray Maine
- Ongoing
Citizen ScienceGeneral ScienceCitizen Science
NASA
Community Snow Observations
To improve temporal and spatial snow depth data coverage.
Anywhere
- Ongoing
Citizen ScienceOcean Water MarineEducationGeology & Earth ScienceClimate & WeatherGeographyComputers & TechnologyEcology & EnvironmentNature & Outdoorsmountainshydrologynasa-supportedsnowremote sensingnasa_nasacryosphere
ISeeChange
ISeeChange
We’re making a record of climate change impacts.
Anywhere
- Ongoing
Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentclimate changelos angelesearth sciencetop2022beachesnasa orbiting carbon observatoryremote sensinggirl scoutsjulia kumari drapkinsnowcitizen journalismresiliencedroughttrees urban street forest mapearth2025birdsneighborhoodnew orleanstop viewed 2021backyardcommunityclimate sciencecarbonjet propulsion laboratorymountainscsm-featuredsciencerainpublic mediaweathermappingurban heatmarine environmentnew yorksensorscitizen science watercrowdsourcingurban heat islandcommunity engagementcitizen sciencetop 22 in 2022storiesfloodearthcitytreesjournalismcsm2025coastal changewnycradioyale climate connectionsclimatesea level risemiaminprsatellitesphotographyheatnasaclimate educationfun
Lynker and DRI / NASA
Mountain Rain or Snow
Our goal is to improve scientists’ understanding of winter precipitation.
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & WeatherEcology & EnvironmentOcean Water Marineweathernasa-sciactsnowhydrologywater_nasatechnologyprecipitationnasa-supportedrainclimate
Precipitation ID Near the Ground (PING)
Develop radar technologies to detect precipitation
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & WeatherComputers & TechnologyOcean Water MarineNature & Outdoorsnational weather servicerainweathernoaaiphoneclimate & weatherprecipitationhailandroid
Izaak Walton League of America
Salt Watch
Monitor chloride levels in local streams.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentOcean Water MarineEducationwaterwaysaltearth2025csm2026road saltcsm2025
SkNOWLEDGE COLLECTIVE
Science, math (& more!) outdoors, one snowball at a time ❄!
Anywhere
- Ongoing
Citizen ScienceGeographyClimate & WeatherEducationsciencesnow depthclimateweatherearth observationmeteorological datawater resourcestemperatureschool-based citizen science initiativesnow wetnessoutdoor field-based activitiessnowmeteorologicalenvironmenthydrological
climate changeenvironment educationgismathoutdoors
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