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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
Jul 30, 2026
16 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 Marinekeep tahoe bluewater qualityalgaedriwater colorlake tahoetrashuc davislitterucdavistahoetruckeeleague to save lake tahoetahoe environmental research centerstories in the snowdesert research institute
CoCoRaHS: Community Collaborative Rain, Hail and Snow Network
Provide weather data to meteorologists
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & Weathercsm-featuredraincsm2026top 22 in 2022earth2025hurricanefood securityhailthe crowd and the cloudweathertop2022girl scoutsnational weather service_nasacsm2025snowprecipitationcooperclimateec2020
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 & Outdoorsnasa-supportedhydrologysnownasa_nasamountainsremote sensingcryosphere
ISeeChange
ISeeChange
We’re making a record of climate change impacts.
Anywhere
- Ongoing
Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentnasabeachesstoriestop 22 in 2022urban heatnew yorklos angelesfunheattrees urban street forest mapwnycrainneighborhoodjournalismpublic mediamarine environmentremote sensingcsm2025sea level riseearth2025citizen sciencecoastal changeyale climate connectionstreessatellitesjulia kumari drapkinnew orleansjet propulsion laboratorycitizen journalismclimate scienceresilienceurban heat islandclimate educationmiamiclimate changeearthcrowdsourcingcommunitybirdsweathernprnasa orbiting carbon observatorytop2022scienceearth sciencemappingfloodradiogirl scoutscommunity engagementcarboncitizen science waterclimatephotographytop viewed 2021backyardsensorscsm-featuredmountainsdroughtcitysnow
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 Marinehydrology_nasanasa-sciactsnowprecipitationnasa-supportedtechnologyweatherrainwaterclimate
Precipitation ID Near the Ground (PING)
Develop radar technologies to detect precipitation
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & WeatherComputers & TechnologyOcean Water MarineNature & Outdoorsrainclimate & weathernoaaprecipitationhailandroidweatheriphonenational weather service
Izaak Walton League of America
Salt Watch
Monitor chloride levels in local streams.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentOcean Water MarineEducationsaltwaterwaycsm2026road saltearth2025csm2025
SkNOWLEDGE COLLECTIVE
Science, math (& more!) outdoors, one snowball at a time ❄!
Anywhere
- Ongoing
Citizen ScienceGeographyClimate & WeatherEducationoutdoor field-based activitiesschool-based citizen science initiativegissnowenvironment educationclimate changesnow depthmeteorological datascienceweatherclimateearth observationmeteorologicaloutdoorsenvironmenthydrological
snow wetnesstemperaturewater resourcesmath
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