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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
Aug 4, 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 Marinedesert research instituteleague to save lake tahoewater colorstories in the snowlake tahoealgaelittertruckeedritahoe environmental research centerwater qualityucdavistahoekeep tahoe blueuc davistrash
CoCoRaHS: Community Collaborative Rain, Hail and Snow Network
Provide weather data to meteorologists
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & Weathercsm2025coopercsm2026weathernational weather service_nasatop 22 in 2022snowprecipitationhurricaneec2020hailtop2022food securitygirl scoutsraincsm-featuredearth2025climatethe crowd and the cloud
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 & Outdoorssnowhydrologycryosphere_nasanasanasa-supportedremote sensingmountains
ISeeChange
ISeeChange
We’re making a record of climate change impacts.
Anywhere
- Ongoing
Citizen ScienceClimate & WeatherDisaster ResponseEcology & Environmentcitizen science watercoastal changebeachesfloodmarine environmentneighborhoodmiamicitizen sciencenew yorkearthsensorsjet propulsion laboratorytreesweathermappingyale climate connectionsnasa orbiting carbon observatoryearth2025nprtrees urban street forest mapresilienceurban heatcitysnowclimate sciencedroughtcarboncrowdsourcingphotographycommunity engagementmountainspublic mediaclimate changeclimatestoriesbirdssciencesatelliteslos angelesgirl scoutsclimate educationraincsm2025radiocommunitytop2022heattop viewed 2021csm-featuredtop 22 in 2022sea level risenasawnyccitizen journalismbackyardfunjulia kumari drapkinearth sciencenew orleansurban heat islandremote sensingjournalism
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-sciactprecipitationsnowrain_nasatechnologynasa-supportedhydrologywaterclimate
Precipitation ID Near the Ground (PING)
Develop radar technologies to detect precipitation
Multiple locations, including yours!
- Ongoing
Citizen ScienceClimate & WeatherComputers & TechnologyOcean Water MarineNature & Outdoorsclimate & weatherhailweatherrainandroidnoaaprecipitationnational weather serviceiphone
Izaak Walton League of America
Salt Watch
Monitor chloride levels in local streams.
Multiple locations, including yours!
- Ongoing
Citizen ScienceEcology & EnvironmentOcean Water MarineEducationcsm2025saltroad saltwaterwayearth2025csm2026
SkNOWLEDGE COLLECTIVE
Science, math (& more!) outdoors, one snowball at a time ❄!
Anywhere
- Ongoing
Citizen ScienceGeographyClimate & WeatherEducationclimatemathenvironment educationweathergisenvironmentmeteorologicalmeteorological dataclimate changewater resourcessnow wetnesssnow depthschool-based citizen science initiativehydrological
outdoorssnowtemperatureoutdoor field-based activitiesearth observationscience
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