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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
Oct 10, 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 Marinewater colortruckeewater qualityuc davislake tahoetrashlitterdrileague to save lake tahoestories in the snowalgaedesert research institutetahoe environmental research centerkeep tahoe blueucdavistahoe
CoCoRaHS: Community Collaborative Rain, Hail and Snow Network
Provide weather data to meteorologists
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & Weatherfood securitycooper_nasathe crowd and the cloudsnowtop 22 in 2022csm-featuredearth2025hailcsm2025girl scoutstop2022hurricaneec2020csm2026rain gaugerainnational weather service
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 & Outdoorshydrology_nasacryospherenasasnowremote sensingnasa-supportedmountains
ISeeChange
ISeeChange
We’re making a record of climate change impacts.
Anywhere
- Ongoing
Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentsensorstrees urban street forest mapcitizen sciencenasa orbiting carbon observatoryjet propulsion laboratorytop 22 in 2022radiocitizen science watermountainstop2022csm-featuredsea level risemappingtreesphotographypublic mediaclimate sciencenprtop viewed 2021cityearth sciencestoriesrainsatellitesbackyardmarine environmenturban heatcommunity engagementwnycearthnew yorkclimate educationresilienceyale climate connectionsjulia kumari drapkinbeachescarbonnasacitizen journalismcsm2025heatmiaminew orleansscienceearth2025climatesnowbirdsweatherlos angelesdroughtfuncoastal changeurban heat islandclimate changegirl scoutscommunityfloodcrowdsourcingjournalismneighborhoodremote sensing
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 Marinerainprecipitation_nasawaterclimatesnowhydrologynasa-supportednasa-sciacttechnologyweather
Precipitation ID Near the Ground (PING)
Develop radar technologies to detect precipitation
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & WeatherComputers & TechnologyOcean Water MarineNature & Outdoorsclimate & weatherprecipitationiphonehailrainnational weather serviceweatherandroidnoaa
Izaak Walton League of America
Salt Watch
Monitor chloride levels in local streams.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentOcean Water MarineEducationroad saltwaterwaycsm2025earth2025saltcsm2026
SkNOWLEDGE COLLECTIVE
Science, math (& more!) outdoors, one snowball at a time ❄!
Anywhere
- Ongoing
Citizen ScienceGeographyClimate & WeatherEducationclimate changeoutdoorsenvironmentsnowwater resourcesmathschool-based citizen science initiativemeteorologicalweathersnow depthgisoutdoor field-based activitiesenvironment educationclimatehydrological
earth observationsnow wetnesssciencetemperaturemeteorological data
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