OS
OpenStem
@openstem · Joined Jul 2026
7420 public items8 groups
Collection4 items
01Environmental · L2 · Air Pollution: Sources & Smog
02Environmental · L2 · Air Pollution: Sources & Smog
03Environmental · L2 · How Photochemical Smog Forms
+1 moreEnvironmental · L2 · Air Pollution: Sources & Smog
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Environmental · L2 · Air Pollution: Sources & SmogCollection4 items
01Environmental · L2 · Water Pollution & Treatment
02Environmental · L2 · Water Pollution & Treatment
03Environmental · L2 · Steps of a Water Treatment Plant
+1 moreEnvironmental · L2 · Water Pollution & Treatment
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Environmental · L2 · Water Pollution & TreatmentCollection4 items
01Environmental · L2 · Recycling Systems & Materials
02Environmental · L2 · Recycling Systems & Materials
03Environmental · L2 · Sorting Materials at a Recovery Facility
+1 moreEnvironmental · L2 · Recycling Systems & Materials
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Environmental · L2 · Recycling Systems & MaterialsCollection4 items
01Environmental · L2 · Soil Conservation & Erosion Control
02Environmental · L2 · Soil Conservation & Erosion Control
03Environmental · L2 · Matching Erosion-Control Techniques to the Problem
+1 moreEnvironmental · L2 · Soil Conservation & Erosion Control
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Environmental · L2 · Soil Conservation & Erosion ControlCollection4 items
01Environmental · L2 · Earthquakes & Plate Boundaries
02Environmental · L2 · Earthquakes & Plate Boundaries
03Environmental · L2 · The Three Types of Plate Boundaries
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Environmental · L2 · Earthquakes & Plate BoundariesCollection4 items
01Environmental · L2 · The Ozone Layer & UV Protection
02Environmental · L2 · The Ozone Layer & UV Protection
03Environmental · L2 · Ozone Depletion and Recovery Timeline
+1 moreEnvironmental · L2 · The Ozone Layer & UV Protection
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Environmental · L2 · The Ozone Layer & UV ProtectionCollection4 items
01Environmental · L2 · Invasive Species
02Environmental · L2 · Invasive Species
03Environmental · L2 · From Introduction to Ecosystem Impact
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Environmental · L2 · Invasive SpeciesCollection4 items
01Environmental · L2 · Ocean Currents & Marine Ecosystems
02Environmental · L2 · Ocean Currents & Marine Ecosystems
03Environmental · L2 · The Global Ocean Circulation Loop
+1 moreEnvironmental · L2 · Ocean Currents & Marine Ecosystems
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Environmental · L2 · Ocean Currents & Marine EcosystemsCollection4 items
01Environmental · L2 · Sustainable Agriculture
02Environmental · L2 · Sustainable Agriculture
03Environmental · L2 · A Multi-Year Crop Rotation Cycle
+1 moreEnvironmental · L2 · Sustainable Agriculture
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Environmental · L2 · Sustainable AgricultureCollection4 items
01Environmental · L2 · Glaciers & Ice Sheets
02Environmental · L2 · Glaciers & Ice Sheets
03Environmental · L2 · From Snowfall to Glacial Landform
+1 moreEnvironmental · L2 · Glaciers & Ice Sheets
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Environmental · L2 · Glaciers & Ice SheetsCollection4 items
01Environmental · L2 · Desert Ecosystems & Adaptations
02Environmental · L2 · Desert Ecosystems & Adaptations
03Environmental · L2 · CAM Photosynthesis — A Desert Plant's Night Shift
+1 moreEnvironmental · L2 · Desert Ecosystems & Adaptations
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Environmental · L2 · Desert Ecosystems & AdaptationsCollection4 items
01Environmental · L2 · Wetland Ecosystems
02Environmental · L2 · Wetland Ecosystems
03Environmental · L2 · How a Wetland Filters Water
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Environmental · L2 · Wetland EcosystemsCollection4 items
01Environmental · L2 · Coral Reef Ecology
02Environmental · L2 · Coral Reef Ecology
03Environmental · L2 · The Coral Bleaching Mechanism
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Environmental · L2 · Coral Reef EcologyCollection4 items
01Environmental · L2 · Energy Efficiency in Buildings
02Environmental · L2 · Energy Efficiency in Buildings
03Environmental · L2 · Why Insulation Cuts Energy Use
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Environmental · L2 · Energy Efficiency in BuildingsCollection4 items
01Environmental · L2 · Carbon Footprint
02Environmental · L2 · Carbon Footprint
03Environmental · L2 · What Adds Up to a Carbon Footprint
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Environmental · L2 · Carbon FootprintCollection4 items
01Environmental · L2 · Comparing Energy Sources
02Environmental · L2 · Comparing Energy Sources
03Environmental · L2 · Choosing Between Energy Sources
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Environmental · L2 · Comparing Energy SourcesCollection4 items
01Environmental · L2 · Urban Heat Island Effect
02Environmental · L2 · Urban Heat Island Effect
03Environmental · L2 · How the Urban Heat Island Effect Builds Up
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Environmental · L2 · Urban Heat Island EffectCollection4 items
01Environmental · L2 · Groundwater & Aquifers
02Environmental · L2 · Groundwater & Aquifers
03Environmental · L2 · The Groundwater Recharge and Depletion Cycle
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Environmental · L2 · Groundwater & AquifersCollection4 items
01Environmental · L2 · Deforestation: Causes & Effects
02Environmental · L2 · Deforestation: Causes & Effects
03Environmental · L2 · From Causes of Deforestation to Its Effects
+1 moreEnvironmental · L2 · Deforestation: Causes & Effects
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Environmental · L2 · Deforestation: Causes & EffectsCollection4 items
01Environmental · L2 · Wildlife Corridors & Habitat Fragmentation
02Environmental · L2 · Wildlife Corridors & Habitat Fragmentation
03Environmental · L2 · Habitat Fragmentation vs. a Connected Landscape
+1 moreEnvironmental · L2 · Wildlife Corridors & Habitat Fragmentation
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Environmental · L2 · Wildlife Corridors & Habitat FragmentationCollection4 items
01Environmental · L2 · Electronic Waste
02Environmental · L2 · Electronic Waste
03Environmental · L2 · Where Old Electronics End Up
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Environmental · L2 · Electronic WasteCollection4 items
01Environmental · L2 · Environmental Justice
02Environmental · L2 · Environmental Justice
03Environmental · L2 · How Unequal Pollution Exposure Takes Shape
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Environmental · L2 · Environmental JusticeCollection6 items
01Atmospheric CO₂ Rise Since 1960 (Keeling Curve)
02Global Mean Sea-Level Rise Since 1900
03Radiative Forcing vs CO₂ Concentration
+3 moreEnvironmental · L3 · Visualised Earth
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Environmental · L3 · Visualised EarthCollection4 items
01Environmental · L3 · Trophic Levels & Energy Pyramids
02Environmental · L3 · Trophic Levels & Energy Pyramids
03Environmental · L3 · Energy Pyramid: The 10% Rule
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Environmental · L3 · Trophic Levels & Energy PyramidsCollection4 items
01Environmental · L3 · The Nitrogen Cycle
02Environmental · L3 · The Nitrogen Cycle
03Environmental · L3 · The Nitrogen Cycle
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Environmental · L3 · The Nitrogen CycleCollection4 items
01Environmental · L3 · The Phosphorus Cycle
02Environmental · L3 · The Phosphorus Cycle
03Environmental · L3 · The Phosphorus Cycle
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Environmental · L3 · The Phosphorus CycleCollection4 items
01Environmental · L3 · Population Ecology & Carrying Capacity
02Environmental · L3 · Population Ecology & Carrying Capacity
03Environmental · L3 · Logistic Growth: From Rapid Growth to Carrying Capacity
+1 moreEnvironmental · L3 · Population Ecology & Carrying Capacity
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Environmental · L3 · Population Ecology & Carrying CapacityCollection4 items
01Environmental · L3 · Climate Feedback Loops
02Environmental · L3 · Climate Feedback Loops
03Environmental · L3 · Ice-Albedo Positive Feedback Loop
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Environmental · L3 · Climate Feedback LoopsCollection4 items
01Environmental · L3 · Renewable Energy Technologies
02Environmental · L3 · Renewable Energy Technologies
03Environmental · L3 · Grid Balancing Under Renewable Intermittency
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Environmental · L3 · Renewable Energy TechnologiesCollection4 items
01Environmental · L3 · Air Quality Index & Pollutants
02Environmental · L3 · Air Quality Index & Pollutants
03Environmental · L3 · How an AQI Score Is Built
+1 moreEnvironmental · L3 · Air Quality Index & Pollutants
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Environmental · L3 · Air Quality Index & Pollutants